9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
#51
Junior Member
Join Date: Jun 2017
Location: Michigan
Posts: 30
Likes: 0
Received 1 Like
on
1 Post
Car: 88 Camaro Iroc Z
Engine: 383 SBC
Transmission: 700r4 600hp, 650 lbs-ft
Axle/Gears: 3.27 9 bolt posi
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Hey guys, I have a 9 bolt as well and was looking through this thread, sounds awesome. My rearend was swap from a bastard 10 bolt off an 85 z28, now its under my 88 that also had a 10 bolt under it, i sold that unit to a car club member. Now to my question, i went to the link posted above for sourcing the diff, but it gave me a description about what it fits, so i clicked a few links to find it and came across 3 diffs. 2 have the m78 in mind with 1 reading "torque lock gm ve commodore" and the other reading "TORQUELOCK FORD FALCON LSD M86 BA TO BF XR6 TURBO IRS AND SOLID AXLE". Of these 2 which is the correct one to grab or do i do better just sending an email about one? Thanks guys sorry for the text.
#53
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
I would just email Dave. He is aware of this mod and several of us have bought from Supa-F. When I contacted them they seemed unaware of the fitment of this diff into a non-Holden application. They understand it works for us now.
GD
GD
The following users liked this post:
george88gta (09-12-2022)
#54
Junior Member
Join Date: Dec 2020
Location: Texas
Posts: 9
Likes: 0
Received 6 Likes
on
2 Posts
Car: 1989 Pro-Charged IROC-Z
Engine: 5.7
Axle/Gears: 3.27 Helical Posi
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Question....
So I recently got the Mace Helical diff for my 89 IROC.. The factory setup in the car was a 2.77 ratio. I managed to source a really nice 3.27 B/W factory gear set from a Grand National. Being my original carrier was a "2 series" and my 3.27 gears were from a "3 series" am I screwed? Does anyone make a ring gear spacer for the 7.75" if I need one? I have yet to assemble the diff with the new carrier and gear. I didn't want to press the bearings on the carrier or pinion until I was sure. Anybody know if this setup will work without a spacer on the ring gear?
So after putting the Mace true trac next to my old series 2 carrier it looks like the Mace IS a 3 series, so I think I'm good with the thin 3.27...
Thanks!
So I recently got the Mace Helical diff for my 89 IROC.. The factory setup in the car was a 2.77 ratio. I managed to source a really nice 3.27 B/W factory gear set from a Grand National. Being my original carrier was a "2 series" and my 3.27 gears were from a "3 series" am I screwed? Does anyone make a ring gear spacer for the 7.75" if I need one? I have yet to assemble the diff with the new carrier and gear. I didn't want to press the bearings on the carrier or pinion until I was sure. Anybody know if this setup will work without a spacer on the ring gear?
So after putting the Mace true trac next to my old series 2 carrier it looks like the Mace IS a 3 series, so I think I'm good with the thin 3.27...
Thanks!
Last edited by BamBam007; 01-23-2021 at 05:30 PM. Reason: Fixed typo
The following users liked this post:
TTOP350 (01-31-2021)
#56
Junior Member
Join Date: Dec 2020
Location: Texas
Posts: 9
Likes: 0
Received 6 Likes
on
2 Posts
Car: 1989 Pro-Charged IROC-Z
Engine: 5.7
Axle/Gears: 3.27 Helical Posi
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Yeah right? That's what I said... Mostly was in the LE1 and the Turbo Trans Am... Guess they stuffed it in a few others.... BTW, there's a nice set of Borg Warner 3.27's on ebay right now...
https://www.ebay.com/itm/Used-GM-7-7...sAAOSw149gBxNH
GET IT WHILE IT'S HOT!
https://www.ebay.com/itm/Used-GM-7-7...sAAOSw149gBxNH
GET IT WHILE IT'S HOT!
#57
Member
Join Date: Dec 2011
Posts: 188
Likes: 0
Received 1 Like
on
1 Post
Car: Transam, 85
Engine: 305 HO, 4bbl Carb, G Engine
Transmission: 5 Speed
Axle/Gears: 3.73
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
From factory 2.7x to new 3.2x. Will it not increase engine rpm by 4 to 500 in each trans gear pull?
#58
Supreme Member
iTrader: (8)
Join Date: Oct 2001
Location: Il
Posts: 11,896
Received 912 Likes
on
599 Posts
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Never heard of a 9 bolt in a GN... So I asked my GN friends. No 9bolts. All used the 8.5 10bolt
Last edited by TTOP350; 01-23-2021 at 08:11 PM.
The following 2 users liked this post by TTOP350:
1986BANDIT (01-30-2021), scooter (01-23-2021)
#59
Junior Member
Join Date: Dec 2020
Location: Texas
Posts: 9
Likes: 0
Received 6 Likes
on
2 Posts
Car: 1989 Pro-Charged IROC-Z
Engine: 5.7
Axle/Gears: 3.27 Helical Posi
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Your right, my bad... They did offer a 3.27 in the GN but it was the 10 bolt 8.5 r/p...
#60
Senior Member
Join Date: Mar 2017
Location: waterloo ontario
Posts: 902
Received 139 Likes
on
110 Posts
Car: 1986 trans am
Engine: 305/350
Transmission: 5 speed
Axle/Gears: 3.27
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
#61
Supreme Member
Join Date: Jul 2006
Location: 212 is up in this Bit@#
Posts: 2,805
Received 762 Likes
on
585 Posts
Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
I keep forgetting to post this when a 9-Bolt Thread is actually active.
Most of you guys have probably used Axle-Seals that are similar/ look similar to these:
These are not a bad seal and they will do the job...
However they are delicate and not made of the most ideal materials.
Instead, I have been using these Axle-Seals from SKF for about the last 20 years, and they work quite well!
These seal have lip-seals facing in both directions to seal against the Axle-Shafts.
In addition, there is sealing material facing outwards to seal against the Axle-Tubes/ Differential Assembly.
These are by far the best performing Axle-Seals that I have ever installed into a 9-Bolt Differential Assembly.
About 11 years ago; I purchase large quantity of these seals, including all of the seals and Inspection-Cover Gasket to keep as surplus.
I can only hope that the quality of these seals has remained.
Have you guys ever picked-up the box that an auto-part is inside of...
Only for the box to have some actual weight to it...
Then think to yourself: "Now that is a quality part".
??? Let me know!
Most of you guys have probably used Axle-Seals that are similar/ look similar to these:
These are not a bad seal and they will do the job...
However they are delicate and not made of the most ideal materials.
Instead, I have been using these Axle-Seals from SKF for about the last 20 years, and they work quite well!
These seal have lip-seals facing in both directions to seal against the Axle-Shafts.
In addition, there is sealing material facing outwards to seal against the Axle-Tubes/ Differential Assembly.
These are by far the best performing Axle-Seals that I have ever installed into a 9-Bolt Differential Assembly.
About 11 years ago; I purchase large quantity of these seals, including all of the seals and Inspection-Cover Gasket to keep as surplus.
I can only hope that the quality of these seals has remained.
Have you guys ever picked-up the box that an auto-part is inside of...
Only for the box to have some actual weight to it...
Then think to yourself: "Now that is a quality part".
??? Let me know!
#62
Supreme Member
iTrader: (11)
Join Date: Sep 1999
Location: NJ
Posts: 4,350
Received 299 Likes
on
235 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
I keep forgetting to post this when a 9-Bolt Thread is actually active.
Most of you guys have probably used Axle-Seals that are similar/ look similar to these:
These are not a bad seal and they will do the job...
However they are delicate and not made of the most ideal materials.
Most of you guys have probably used Axle-Seals that are similar/ look similar to these:
These are not a bad seal and they will do the job...
However they are delicate and not made of the most ideal materials.
Instead, I have been using these Axle-Seals from SKF for about the last 20 years, and they work quite well!
These seal have lip-seals facing in both directions to seal against the Axle-Shafts.
In addition, there is sealing material facing outwards to seal against the Axle-Tubes/ Differential Assembly.
These are by far the best performing Axle-Seals that I have ever installed into a 9-Bolt Differential Assembly.
About 11 years ago; I purchase large quantity of these seals, including all of the seals and Inspection-Cover Gasket to keep as surplus.
I can only hope that the quality of these seals has remained.
These seal have lip-seals facing in both directions to seal against the Axle-Shafts.
In addition, there is sealing material facing outwards to seal against the Axle-Tubes/ Differential Assembly.
These are by far the best performing Axle-Seals that I have ever installed into a 9-Bolt Differential Assembly.
About 11 years ago; I purchase large quantity of these seals, including all of the seals and Inspection-Cover Gasket to keep as surplus.
I can only hope that the quality of these seals has remained.
If you buy the Timken seal that comes up as the "correct number", but completely coated in rubber, it DOES work, it just doesn't fit correctly (as do the ones you posted) and you need to put a spacer between the retainer plate and the axle housing so it doesn't crush the seal. I am using one Timken seal in my car now and it doesn't leak
#63
Supreme Member
Join Date: Jul 2006
Location: 212 is up in this Bit@#
Posts: 2,805
Received 762 Likes
on
585 Posts
Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
This seal is actually incorrect and won't work properly, oil will leak past the outside since there is nothing to seal it to the housing.
It's not that this is the best performing, it is the correct seal, though one is for a specific orientation and the other is a "universal" fit since it doesn't have the directional wipers in the inner seal. 16491 can be used for either side. The problem is that these are getting harder to find and are now quite expensive. Even though I have posted it several times no one is buying the proper seal, then they come to this site and complain. Yukon actually makes/sells these seals still but are very expensive. I was actually able to find one of the seals from another brand that is correct, but it is no longer available.
If you buy the Timken seal that comes up as the "correct number", but completely coated in rubber, it DOES work, it just doesn't fit correctly (as do the ones you posted) and you need to put a spacer between the retainer plate and the axle housing so it doesn't crush the seal. I am using one Timken seal in my car now and it doesn't leak
It's not that this is the best performing, it is the correct seal, though one is for a specific orientation and the other is a "universal" fit since it doesn't have the directional wipers in the inner seal. 16491 can be used for either side. The problem is that these are getting harder to find and are now quite expensive. Even though I have posted it several times no one is buying the proper seal, then they come to this site and complain. Yukon actually makes/sells these seals still but are very expensive. I was actually able to find one of the seals from another brand that is correct, but it is no longer available.
If you buy the Timken seal that comes up as the "correct number", but completely coated in rubber, it DOES work, it just doesn't fit correctly (as do the ones you posted) and you need to put a spacer between the retainer plate and the axle housing so it doesn't crush the seal. I am using one Timken seal in my car now and it doesn't leak
Due to the terrible quality of the camera in my old cell-phone... It is difficult to see the #16491 seal clearly.
All of the #16491 seals that I currently possess, actually have the oil grooves/ ridges, and they go in the opposite direction of the #16542 seals...
The ridges of the #16491 seals are just finer than the ridges of the #16542 seals.
The documentation that GM digitized regarding the 9-Bolt differential are severely lacking in many details.
I went to visit co-workers of mine that work in Archives; and they informed me that detailed information on these axle assemblies outside of info included in the Shop-Manuals...
was always very abysmal. Much of the information never seemed to leave Borg Warner in Australia.
I would like to know more about any type of spacer that you mentioned... because I have had to install shims in this location and would love to see a spacer instead.
#64
Supreme Member
iTrader: (11)
Join Date: Sep 1999
Location: NJ
Posts: 4,350
Received 299 Likes
on
235 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
I wasn't sure about the seals in 16491 with the ridges, I couldn't tell from the picture. That would make them directional then and negate them being universal.
I don't even know where my spare set of seals are to go looking at them again. I have sh*t all over the house.
I just used washers to space out the retaining plate. Nothing fancy needed
How many of these seals did you purchase? lol
I don't even know where my spare set of seals are to go looking at them again. I have sh*t all over the house.
I just used washers to space out the retaining plate. Nothing fancy needed
How many of these seals did you purchase? lol
#65
Supreme Member
Join Date: Jul 2006
Location: 212 is up in this Bit@#
Posts: 2,805
Received 762 Likes
on
585 Posts
Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
I have 14 of each.
When I come across a part for something that I need for my business or personally own; and it is rare...
I tend to purchase a good amount if available.
As old and uncommon as 9-Bolt parts are... I have obtained a good amount of some nice stuff:
-29 and 31 Spline Cones and Side-Gears
-Cross-Pin and 4-Spider Assemblies
-Carrier Half 10.9 grade Bolts
-ARP Studs and Nuts for the Bearing Caps
-Fel-Pro Inspection Cover Gaskets
-TA Performance Inspection Covers
-Solid Pinion Sleeves
-ETC...
I used to specialize in 9-Bolt and Dana-44 Swaps in 3rd-Gens.
Most of the Diff. work that I do now is 12-Bolt or 9+ (9.5", 10", 11" versions of the Ford 9")
So now I just keep some of these parts for myself.
Most people here don't know... But I have a Custom Power-Train Business.
I design/ spec. and build complete GM power-trains for "Drag-Week" type "Street-Cars" and Drag-cars in the 1,000 to 3,500 HP range.
Engine-management and power-distribution systems included.
When I come across a part for something that I need for my business or personally own; and it is rare...
I tend to purchase a good amount if available.
As old and uncommon as 9-Bolt parts are... I have obtained a good amount of some nice stuff:
-29 and 31 Spline Cones and Side-Gears
-Cross-Pin and 4-Spider Assemblies
-Carrier Half 10.9 grade Bolts
-ARP Studs and Nuts for the Bearing Caps
-Fel-Pro Inspection Cover Gaskets
-TA Performance Inspection Covers
-Solid Pinion Sleeves
-ETC...
I used to specialize in 9-Bolt and Dana-44 Swaps in 3rd-Gens.
Most of the Diff. work that I do now is 12-Bolt or 9+ (9.5", 10", 11" versions of the Ford 9")
So now I just keep some of these parts for myself.
Most people here don't know... But I have a Custom Power-Train Business.
I design/ spec. and build complete GM power-trains for "Drag-Week" type "Street-Cars" and Drag-cars in the 1,000 to 3,500 HP range.
Engine-management and power-distribution systems included.
The following users liked this post:
TTOP350 (03-05-2021)
#66
Supreme Member
Join Date: Jul 2006
Location: 212 is up in this Bit@#
Posts: 2,805
Received 762 Likes
on
585 Posts
Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Scooter, Thank you for the information.
Yes I see that Summit-Racing sells both axle seals under the Yukon-Gear Branding for $42.00 each...
Not bad, and not crazy priced yet anyway.
Then I also found an earlier thread here on TGO...
Napa offers the Left-side axle-seal, from SKF for $19.99 each. Napa part #NOS 16491.
Autozone offers the Right-side axle-seal, from Timken for $19.99 each. Autozone part #710179 /SKU #226673.
The Reviews for the Autozone part state that sometimes the seal is an all-black seal that resembles the Timken Pinion-Seal for the 9-Bolt...
And other times the seal resembles the SKF seal.
I am going to purchase one of each just to compare to the seals that I already possess... they should be the same.
Do you have any photos of the axle retaining plate installed with the washers that you use?
What is the dimension/ width of the washer/ washers that you use?
Yes I see that Summit-Racing sells both axle seals under the Yukon-Gear Branding for $42.00 each...
Not bad, and not crazy priced yet anyway.
Then I also found an earlier thread here on TGO...
Napa offers the Left-side axle-seal, from SKF for $19.99 each. Napa part #NOS 16491.
Autozone offers the Right-side axle-seal, from Timken for $19.99 each. Autozone part #710179 /SKU #226673.
The Reviews for the Autozone part state that sometimes the seal is an all-black seal that resembles the Timken Pinion-Seal for the 9-Bolt...
And other times the seal resembles the SKF seal.
I am going to purchase one of each just to compare to the seals that I already possess... they should be the same.
Do you have any photos of the axle retaining plate installed with the washers that you use?
What is the dimension/ width of the washer/ washers that you use?
#67
Supreme Member
iTrader: (11)
Join Date: Sep 1999
Location: NJ
Posts: 4,350
Received 299 Likes
on
235 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Scooter, Thank you for the information.
Yes I see that Summit-Racing sells both axle seals under the Yukon-Gear Branding for $42.00 each...
Not bad, and not crazy priced yet anyway.
Then I also found an earlier thread here on TGO...
Napa offers the Left-side axle-seal, from SKF for $19.99 each. Napa part #NOS 16491.
Autozone offers the Right-side axle-seal, from Timken for $19.99 each. Autozone part #710179 /SKU #226673.
The Reviews for the Autozone part state that sometimes the seal is an all-black seal that resembles the Timken Pinion-Seal for the 9-Bolt...
And other times the seal resembles the SKF seal.
I am going to purchase one of each just to compare to the seals that I already possess... they should be the same.
Do you have any photos of the axle retaining plate installed with the washers that you use?
What is the dimension/ width of the washer/ washers that you use?
Yes I see that Summit-Racing sells both axle seals under the Yukon-Gear Branding for $42.00 each...
Not bad, and not crazy priced yet anyway.
Then I also found an earlier thread here on TGO...
Napa offers the Left-side axle-seal, from SKF for $19.99 each. Napa part #NOS 16491.
Autozone offers the Right-side axle-seal, from Timken for $19.99 each. Autozone part #710179 /SKU #226673.
The Reviews for the Autozone part state that sometimes the seal is an all-black seal that resembles the Timken Pinion-Seal for the 9-Bolt...
And other times the seal resembles the SKF seal.
I am going to purchase one of each just to compare to the seals that I already possess... they should be the same.
Do you have any photos of the axle retaining plate installed with the washers that you use?
What is the dimension/ width of the washer/ washers that you use?
From the picture the NAPA one should be correct, it has that bell shape to it, not square like the other seals
The Timken seal 710179 is like those first ones you pictured, but covered in rubber. That will work, but it is not the correct seal. I have ordered it twice now and gotten the same thing, as have other people and posted here they got the "wrong" part.
I don't have any pictures of the retainer plate with the washers. I just stuck enough in there to get some pre load on the seal, but not enough to crush it. Been good for 2-3 years now?
$42 is pretty crazy considering I think I paid less than $15 for the SKF seals not all that long ago, maybe 5 years.
#68
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
I wasn't sure about the seals in 16491 with the ridges, I couldn't tell from the picture. That would make them directional then and negate them being universal.
I don't even know where my spare set of seals are to go looking at them again. I have sh*t all over the house.
I just used washers to space out the retaining plate. Nothing fancy needed
How many of these seals did you purchase? lol
I don't even know where my spare set of seals are to go looking at them again. I have sh*t all over the house.
I just used washers to space out the retaining plate. Nothing fancy needed
How many of these seals did you purchase? lol
The following users liked this post:
TTOP350 (02-24-2021)
#70
Member
iTrader: (2)
Join Date: Jun 2006
Location: Dallas, TX
Posts: 181
Likes: 0
Received 4 Likes
on
3 Posts
Car: 1982 Z-28
Engine: 5.7L Crossfire
Transmission: TH-350
Axle/Gears: GM Posi, 3.73
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
I just ordered mine today so here is a pricing update: $595AUD for the differential and $185AUD for shipping for a total of $780AUD. I paid via Paypal and that wound up being $644USD. Looks like total price has gone up $100USD.
#71
Junior Member
Join Date: Jun 2017
Location: Michigan
Posts: 30
Likes: 0
Received 1 Like
on
1 Post
Car: 88 Camaro Iroc Z
Engine: 383 SBC
Transmission: 700r4 600hp, 650 lbs-ft
Axle/Gears: 3.27 9 bolt posi
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Hey guys, so yesterday I took it upon myself to call one of the diff manufacturers here to see about getting one custom built. The diff I was thinking about is a wavetrac system, unfortunately, they dont do custom orders unless there is a big enough market. The magic number is between 20-40 before they'll do investigation of coming up with a diff for our 9 bolt. I just thought it would be cool if we were able to get one in the US, that way if they need to be serviced we can source it immediately rather than wait to drive our 3rd gens. Let me know what you guys think.
#72
Supreme Member
iTrader: (11)
Join Date: Sep 1999
Location: NJ
Posts: 4,350
Received 299 Likes
on
235 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Hey guys, so yesterday I took it upon myself to call one of the diff manufacturers here to see about getting one custom built. The diff I was thinking about is a wavetrac system, unfortunately, they dont do custom orders unless there is a big enough market. The magic number is between 20-40 before they'll do investigation of coming up with a diff for our 9 bolt. I just thought it would be cool if we were able to get one in the US, that way if they need to be serviced we can source it immediately rather than wait to drive our 3rd gens. Let me know what you guys think.
#74
Member
iTrader: (2)
Join Date: Jun 2006
Location: Dallas, TX
Posts: 181
Likes: 0
Received 4 Likes
on
3 Posts
Car: 1982 Z-28
Engine: 5.7L Crossfire
Transmission: TH-350
Axle/Gears: GM Posi, 3.73
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
I think a far simpler solution is for one of the big third gen resto parts businesses to import the Australian Torqueline differentials directly and carry an inventory for people in the U.S. to buy from.
#75
Member
iTrader: (2)
Join Date: Jun 2006
Location: Dallas, TX
Posts: 181
Likes: 0
Received 4 Likes
on
3 Posts
Car: 1982 Z-28
Engine: 5.7L Crossfire
Transmission: TH-350
Axle/Gears: GM Posi, 3.73
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Hey guys, so yesterday I took it upon myself to call one of the diff manufacturers here to see about getting one custom built. The diff I was thinking about is a wavetrac system, unfortunately, they dont do custom orders unless there is a big enough market. The magic number is between 20-40 before they'll do investigation of coming up with a diff for our 9 bolt. I just thought it would be cool if we were able to get one in the US, that way if they need to be serviced we can source it immediately rather than wait to drive our 3rd gens. Let me know what you guys think.
#77
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Someone needs to figure out who in China is making them. They will sell anything to anyone once you contact the factory directly. Just need to contact a seller on Ali Express probably and have them track down the manufacturer.
GD
GD
The following users liked this post:
Chevy86 IROC-Z (02-25-2021)
#78
Supreme Member
Join Date: Jul 2006
Location: 212 is up in this Bit@#
Posts: 2,805
Received 762 Likes
on
585 Posts
Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
#79
Supreme Member
iTrader: (11)
Join Date: Sep 1999
Location: NJ
Posts: 4,350
Received 299 Likes
on
235 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
#81
Supreme Member
Join Date: Jul 2006
Location: 212 is up in this Bit@#
Posts: 2,805
Received 762 Likes
on
585 Posts
Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
That is a Hyperlink for Advanced Auto Parts...
I was asking about AutoZone, like on the receipt that was posted.
#84
Senior Member
iTrader: (1)
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Quick question, finally getting my unit put together, what is the best lubricant for this unit?
Also, are these the right seals? Or did something go wrong?
Used this link: https://www.summitracing.com/parts/yga-30267
Something tells me I might need to make a return...
It appears I received a YMSF1001
Easy enough mistake I suppose...
Also, are these the right seals? Or did something go wrong?
Used this link: https://www.summitracing.com/parts/yga-30267
Something tells me I might need to make a return...
It appears I received a YMSF1001
Easy enough mistake I suppose...
Last edited by Annihilate; 03-11-2021 at 06:25 AM.
#86
Junior Member
Join Date: Jun 2017
Location: Michigan
Posts: 30
Likes: 0
Received 1 Like
on
1 Post
Car: 88 Camaro Iroc Z
Engine: 383 SBC
Transmission: 700r4 600hp, 650 lbs-ft
Axle/Gears: 3.27 9 bolt posi
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
The bigger seal is for the pinion, i just ordered one from summit 2 days ago.
#87
Supreme Member
iTrader: (11)
Join Date: Sep 1999
Location: NJ
Posts: 4,350
Received 299 Likes
on
235 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
https://www.yukongear.com/partslist....e+Seals+-+Rear
Pinion seal
https://www.yukongear.com/productdet...px?ProdID=8793
#88
Junior Member
Join Date: Jun 2017
Location: Michigan
Posts: 30
Likes: 0
Received 1 Like
on
1 Post
Car: 88 Camaro Iroc Z
Engine: 383 SBC
Transmission: 700r4 600hp, 650 lbs-ft
Axle/Gears: 3.27 9 bolt posi
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
You are correct, though, the part number on the bag w/1003 is the pinion seal part number through yukon, so that unit is right. You would just have to send that one back and ask for the opposite side, unless you are taking the pinion out of the housing, i would keep to replace the old one. Nothing quite like axle dope getting flunk everywhere.
#89
Senior Member
iTrader: (1)
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
I'm pretty sure it's the pinion seal for the Ford 10.25, it has F1001 stamped on it: https://www.yukongear.com/productdetails.aspx?ProdID=8783
Kind of a bummer, puts the project on a small hold. It's definitely not the axle seal.
Any word on the oil I should use to lubricate this thing?
Kind of a bummer, puts the project on a small hold. It's definitely not the axle seal.
Any word on the oil I should use to lubricate this thing?
#90
Supreme Member
iTrader: (11)
Join Date: Sep 1999
Location: NJ
Posts: 4,350
Received 299 Likes
on
235 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
I'm pretty sure it's the pinion seal for the Ford 10.25, it has F1001 stamped on it: https://www.yukongear.com/productdetails.aspx?ProdID=8783
Kind of a bummer, puts the project on a small hold. It's definitely not the axle seal.
Any word on the oil I should use to lubricate this thing?
Kind of a bummer, puts the project on a small hold. It's definitely not the axle seal.
Any word on the oil I should use to lubricate this thing?
I put Amsoil 80-90 in my 9 bolt
#91
Senior Member
iTrader: (1)
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
I sent an email to Summit about the seal early this morning. They just got back to me and are shipping the new seal free of charge, didn't even require me sending back the wrong one.
Pretty good and snappy customer service!
2.25ish Quarts should be good right? I ended up getting the TA Performance Girdle.
Did you add any additive for the unit?
Pretty good and snappy customer service!
2.25ish Quarts should be good right? I ended up getting the TA Performance Girdle.
Did you add any additive for the unit?
Last edited by Annihilate; 03-11-2021 at 03:33 PM.
#92
Supreme Member
iTrader: (11)
Join Date: Sep 1999
Location: NJ
Posts: 4,350
Received 299 Likes
on
235 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
The GM manual says you only need additive if the diff makes noise while turning. The Amsoil says it has modifier already in it, so no additional modifier unless it makes noise. I couldn't tell you the volume, I just pump it in from a gallon container that I keep refilling.
#94
Supreme Member
iTrader: (11)
Join Date: Sep 1999
Location: NJ
Posts: 4,350
Received 299 Likes
on
235 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
The ridges in the seal wipe the oil back towards the housing when the car is moving forward, I think. I guess they thought this was a better strategy than a plain double lip seal to prevent weeping/leaks. You should see grooves or ridges inside the seal that touches the axle
#95
Supreme Member
Join Date: Jul 2006
Location: 212 is up in this Bit@#
Posts: 2,805
Received 762 Likes
on
585 Posts
Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Quick question, finally getting my unit put together, what is the best lubricant for this unit?
Also, are these the right seals? Or did something go wrong?
Used this link: https://www.summitracing.com/parts/yga-30267
Something tells me I might need to make a return...
It appears I received a YMSF1001
Easy enough mistake I suppose...
Also, are these the right seals? Or did something go wrong?
Used this link: https://www.summitracing.com/parts/yga-30267
Something tells me I might need to make a return...
It appears I received a YMSF1001
Easy enough mistake I suppose...
and the seal on the right looks like the seal that SKF produced (the preferred design... but is becoming less and less available).
#97
Junior Member
Join Date: Jun 2017
Location: Michigan
Posts: 30
Likes: 0
Received 1 Like
on
1 Post
Car: 88 Camaro Iroc Z
Engine: 383 SBC
Transmission: 700r4 600hp, 650 lbs-ft
Axle/Gears: 3.27 9 bolt posi
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
If you have the T/A cover, it has provisions for fill level, drain, and capacity. The small allen screw in the middle is for indication of oil being at the right level when it starts to flow out. Obviously, the rest is explanatory.
#99
Junior Member
Join Date: Jun 2017
Location: Michigan
Posts: 30
Likes: 0
Received 1 Like
on
1 Post
Car: 88 Camaro Iroc Z
Engine: 383 SBC
Transmission: 700r4 600hp, 650 lbs-ft
Axle/Gears: 3.27 9 bolt posi
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
Those are actually the instructions on the t/a cover, the big allen screw is for fill, the allen at the bottom is for drainage, and the middle is for level indication, I think they want it to be about a 1/8" below the mark. Also, the t/a covers will hold more fluid.
#100
Re: 9 Bolt Borg Warner Torsen upgrade completed! Thanks keykey!
So as part of an "overall" attempt to gain the most lifespan and power handling from the diff, I put in the Torsen, added the TA girdle cover, and I run 75w140.... is it going to make that much difference? No - but the cost is the same. I'm not building this machine for ultimate fuel economy so the 1-2% loss from thicker oil isn't important - hell the thing gets an average of about 9 mpg on my daily commute.......
To it's credit - the 9 bolt has "survived" three dead 700R4's, and I BEAT THE HELL out of the car pretty much all the time. I can say that properly upgraded they do pretty well. I have the Motive (Yukon) 3.70 gears, and all my rebuild parts came from RaTech.
I'm likely swapping out the rear end though soon as the Procharger kit is sitting here on my garage floor and it's doubtful it will survive 17x10's, and 550+ at the wheels. I will spare it's life for another project and put in something larger before scattering it on the track.
GD
Last edited by GeneralDisorder; 03-12-2021 at 08:51 PM.
The following 2 users liked this post by GeneralDisorder:
Annihilate (03-12-2021), Tidan (03-13-2021)