9 Bolt query
#1
Junior Member
Thread Starter
Join Date: Aug 2006
Location: FL Panhandle
Posts: 78
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1984 Trans Am
Engine: 383 4 bbl
Transmission: T-56
Axle/Gears: eaton posi w/ 4.11's
9 Bolt query
Got a 9 bolt disc rear in my next project. Is it worth beefing up over a 10 bolt that i have laying around? It will need to handle about 450 hp. Also i know parts are hard to find. Is 9bolt.com the only supplier?
#2
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
iTrader: (2)
Join Date: Jul 2005
Location: Guilford, Connecticut
Posts: 1,428
Likes: 0
Received 2 Likes
on
2 Posts
Car: 1988 IROC-Z camaro
Engine: 355 TPI
Transmission: tko 500
Axle/Gears: Dana 44 3.31 posi pbr brakes
Re: 9 Bolt query
Not to rain on your parade but if you start beating on either the 9 bolt or 10 bolt with that power, its going to break sooner rather than later. You should look into a aftermarket rear for our cars for that power...or a dana 44 if you can find one reasonably cheap.
#3
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
iTrader: (7)
Join Date: Nov 2006
Location: Alamogordo, NM
Posts: 3,740
Likes: 0
Received 9 Likes
on
9 Posts
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
Re: 9 Bolt query
I beg to differ. Alot of people have been beating on 9 bolts without a problem. As long as it is set up properly and you still have good cone gap, I think everything is good to go.
#4
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
iTrader: (2)
Join Date: Jul 2005
Location: Guilford, Connecticut
Posts: 1,428
Likes: 0
Received 2 Likes
on
2 Posts
Car: 1988 IROC-Z camaro
Engine: 355 TPI
Transmission: tko 500
Axle/Gears: Dana 44 3.31 posi pbr brakes
Re: 9 Bolt query
Yes but its still a 7 3/4 rear at the end of the day. Ive heard of people setting them up and getting 400 to the wheels with them but im pretty sure there is not too much "beating" involved. A 9 bolt is certainly stronger than a 10 bolt by design but not by too much. I stand by what i said. If hes going to be putting that kind of power to the ground he can run a 9 bolt but he has to be prepared for it to break if he launches hard and hooks up. If hes running it on the street with street tires and traction problems then it will probably hold up for awhile longer. Once slicks and dragracing are brought in he can say goodbye to it eventually.
#5
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
iTrader: (3)
Join Date: Sep 2007
Location: St.cloud fl.
Posts: 1,027
Likes: 0
Received 0 Likes
on
0 Posts
Car: 90RS Conv.
Engine: 383 w/ small shot
Transmission: th400
Axle/Gears: moser 9in
Re: 9 Bolt query
the best bang for your buck would be a stud girdle from TA Performance.
I run my 9 bolt hard and i launch on spray with slicks. Im running 11s in the qtr. so ill guess 300hp + 75 shot of spray. I havent had any problems thus far.
but my new combo that im building will see more hp and spray, so a 9" moser is on the to get list
I run my 9 bolt hard and i launch on spray with slicks. Im running 11s in the qtr. so ill guess 300hp + 75 shot of spray. I havent had any problems thus far.
but my new combo that im building will see more hp and spray, so a 9" moser is on the to get list
Thread
Thread Starter
Forum
Replies
Last Post
UltRoadWarrior9
Transmissions and Drivetrain
3
09-02-2015 08:24 PM