Will a 9bolt posi-trac work in a 10 bolt?
#1
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Will a 9bolt posi-trac work in a 10 bolt?
I have a 10 bolt I can get for free, but it has an open differental. I want to go with lower gears than the 9 bolt has to offer, so I am trying to see what my options are. Is there anything I can do with this 10 bolt that isn't going to cost me an arm and a leg? I would love to stay with the 9 bolt, but 3.70's are as low as they go, plus a ring and pinion set is pretty high. any advice would be great, thanks.
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87'IROC-Z 357
440 hp carb'd monster
[This message has been edited by southerniroc (edited March 28, 2001).]
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87'IROC-Z 357
440 hp carb'd monster
[This message has been edited by southerniroc (edited March 28, 2001).]
#4
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Car: 88 Camaro
Engine: 427 BBC
Transmission: T400
Ratios to 4.11 are soon to be available.
As soon as I finish the 3.73 (not 3.70) install on my car, I am going to install the 4.11 in another 9 bolt I have. If all goes well (there is some tricks that need to be done) I will have some available. Also, new series 3 posi carriers will be available.
Miles
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88 427 Camaro
12.18 @ 113mph 1.75 60ft
Currently installing 3.73's into my 9 bolt (YES,it is a 9 bolt & YES they are 3.73's, not 3.70. 4.11's to follow soon )
www.koolmeister.com
As soon as I finish the 3.73 (not 3.70) install on my car, I am going to install the 4.11 in another 9 bolt I have. If all goes well (there is some tricks that need to be done) I will have some available. Also, new series 3 posi carriers will be available.
Miles
------------------
88 427 Camaro
12.18 @ 113mph 1.75 60ft
Currently installing 3.73's into my 9 bolt (YES,it is a 9 bolt & YES they are 3.73's, not 3.70. 4.11's to follow soon )
www.koolmeister.com
#5
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I just found out today that GM performance has gears for a 9 bolt that go all the way up to 4.10's . The gears are a little pricey, but it will still be a little cheaper than buying a 10 bolt, buying a new ring & pinion,bearings and shims. I guess I will stick with the 9 bolt after all. thanks for the info anyway.
#6
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Is it true about the 9bolt being only slightly stronger than the 10bolt rear? If so,all of that extra money dosen't seem to be worth it to me!!The ford rear is a whole lot stronger than either GM rears! keep what u have in there unless u can find a 9 bolt dirt cheap & upgrade it!
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86 Tramaro 90% Trans Am/ 10% IROC/Z (nose, hood,& fenders)
Trans Am Mods as of 1/10/01
3inch
T.E.S/Flowmaster setup,gutted cat,gutted maf,relocated mat,373 gears,upgraded factory chip,255 liter h/press. walpro f/pump & throttle body coolant bypass
njdaewoo@excite.com
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86 Tramaro 90% Trans Am/ 10% IROC/Z (nose, hood,& fenders)
Trans Am Mods as of 1/10/01
3inch
T.E.S/Flowmaster setup,gutted cat,gutted maf,relocated mat,373 gears,upgraded factory chip,255 liter h/press. walpro f/pump & throttle body coolant bypass
njdaewoo@excite.com
#7
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iTrader: (1)
There are 9-bolts in the 10 and 11 second range, where a 10-bolt wouldnt last there. 9-bolts are plenty strong but they're not indestrucible.
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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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#8
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<font face="Verdana, Arial" size="2">Originally posted by 88 350 tpi formula:
If you lived by me I would pay you to trade with me I just got 4.11 gears and I have a almost new posi but, would like a 9 bolt with 3.70 gears. my 10 bolt needs new bearings but, the 4.11 will need the in stall kit so no problem really just steeper gears than I wan't</font>
If you lived by me I would pay you to trade with me I just got 4.11 gears and I have a almost new posi but, would like a 9 bolt with 3.70 gears. my 10 bolt needs new bearings but, the 4.11 will need the in stall kit so no problem really just steeper gears than I wan't</font>
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