4th gen rear
Supreme Member
Joined: Dec 2003
Posts: 2,391
Likes: 1
From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
Re: 4th gen rear
That's a heavily loaded question. Short answer no. Long answer yes, but with a lot of caveats.
Yes, if the axels are in like new shape, preferably if they've been replaced with new ones from Moser, Yukon, or Superior. And if you don't forget the cap stud kit when you do the girdle. And if you use a solid pinion spacer instead of a crush sleeve. And if you use a new posi unit from Eaton or Yukon (The stock spiders are suspect, and could fail with catastrophic results). And if the gear setup is perfect, preferably using new Yukon gears. And if all the bearings and races are new Timken units. And if you stay away from outright slicks. Sticky stree tires will be fine, and DOT slicks will be okay; for a while...
It can be made to live, but I don't want you to have any illusions. Most guys that are serious are running a 12 bolt or 9", and there's a reason for that. There are just too many unknowns in the strength of drivetrain parts to give a definite yes, unless there's overkill built into the equation, which you have with a 9" or 12 bolt, but not so much with a 7.625" 10 bolt.
Yes, if the axels are in like new shape, preferably if they've been replaced with new ones from Moser, Yukon, or Superior. And if you don't forget the cap stud kit when you do the girdle. And if you use a solid pinion spacer instead of a crush sleeve. And if you use a new posi unit from Eaton or Yukon (The stock spiders are suspect, and could fail with catastrophic results). And if the gear setup is perfect, preferably using new Yukon gears. And if all the bearings and races are new Timken units. And if you stay away from outright slicks. Sticky stree tires will be fine, and DOT slicks will be okay; for a while...
It can be made to live, but I don't want you to have any illusions. Most guys that are serious are running a 12 bolt or 9", and there's a reason for that. There are just too many unknowns in the strength of drivetrain parts to give a definite yes, unless there's overkill built into the equation, which you have with a 9" or 12 bolt, but not so much with a 7.625" 10 bolt.
Thread Starter
Senior Member
Joined: Jun 2008
Posts: 660
Likes: 1
From: Corning NY
Car: 86' IROC
Engine: 388
Transmission: Built 700r4
Axle/Gears: 3.08 non-posi
Re: 4th gen rear
That's a heavily loaded question. Short answer no. Long answer yes, but with a lot of caveats.
Yes, if the axels are in like new shape, preferably if they've been replaced with new ones from Moser, Yukon, or Superior. And if you don't forget the cap stud kit when you do the girdle. And if you use a solid pinion spacer instead of a crush sleeve. And if you use a new posi unit from Eaton or Yukon (The stock spiders are suspect, and could fail with catastrophic results). And if the gear setup is perfect, preferably using new Yukon gears. And if all the bearings and races are new Timken units. And if you stay away from outright slicks. Sticky stree tires will be fine, and DOT slicks will be okay; for a while...
It can be made to live, but I don't want you to have any illusions. Most guys that are serious are running a 12 bolt or 9", and there's a reason for that. There are just too many unknowns in the strength of drivetrain parts to give a definite yes, unless there's overkill built into the equation, which you have with a 9" or 12 bolt, but not so much with a 7.625" 10 bolt.
Yes, if the axels are in like new shape, preferably if they've been replaced with new ones from Moser, Yukon, or Superior. And if you don't forget the cap stud kit when you do the girdle. And if you use a solid pinion spacer instead of a crush sleeve. And if you use a new posi unit from Eaton or Yukon (The stock spiders are suspect, and could fail with catastrophic results). And if the gear setup is perfect, preferably using new Yukon gears. And if all the bearings and races are new Timken units. And if you stay away from outright slicks. Sticky stree tires will be fine, and DOT slicks will be okay; for a while...
It can be made to live, but I don't want you to have any illusions. Most guys that are serious are running a 12 bolt or 9", and there's a reason for that. There are just too many unknowns in the strength of drivetrain parts to give a definite yes, unless there's overkill built into the equation, which you have with a 9" or 12 bolt, but not so much with a 7.625" 10 bolt.
Thread
Thread Starter
Forum
Replies
Last Post
1992rs/ss
NW Indiana and South Chicago Suburb
14
Jan 31, 2025 05:10 PM
1992rs/ss
Engine/Drivetrain/Suspension Parts for Sale
16
Jan 28, 2016 09:58 PM
