updrading rear end
Thread Starter
Joined: Mar 2002
Posts: 241
Likes: 5
From: Cincinnati, OH
Car: 1985 Z28
Engine: 350 TPI
Transmission: T56
Axle/Gears: 3.90 10 bolt eaton posi
updrading rear end
I have a 3.73 9 bolt w\disc brakes posi. I would like to keep the disc brakes. It is going out, about 120,000 miles on it and I think it is time. I want to know what other people have and what you suggest. Something that will bolt in directly, new or used.
Supreme Member
Joined: Mar 2003
Posts: 1,301
Likes: 0
From: Severn, MD.
Car: '88 T/A and '90 T/A
Engine: LB9/383
Transmission: T5/700R4
You making a ton of power? If not then you can rebuild the 9 bolt or build a decent disk 10 bolt. Find a new carrier for the 9 bolt, all new bearings, seals and ring/pinion. Or find a 10 bolt and do the same. If you're putting good power to the ground, slam some aftermarket axles in a 10 bolt with a better than stock carrier. If you're putting serious power down or plan on running slicks, an 12 bolt is always nice.
Thread Starter
Joined: Mar 2002
Posts: 241
Likes: 5
From: Cincinnati, OH
Car: 1985 Z28
Engine: 350 TPI
Transmission: T56
Axle/Gears: 3.90 10 bolt eaton posi
I dont have a huge ammount of power coming out. I pobably have an extra 50 hp. Does anyone have suggestions about what carrier to use, and ring\pinion.
Supreme Member
Joined: Mar 2003
Posts: 1,301
Likes: 0
From: Severn, MD.
Car: '88 T/A and '90 T/A
Engine: LB9/383
Transmission: T5/700R4
Try to find a take out diff, SLP used to have them for $99 but when the Fbody production stopped so did that deal. They pop up on ebay. Whatever you do, stick with GM gearsets, they tend to be quieter.
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