Info on strengthening the 7.5" rear

[Donniejr81]

If anybody out there is stuck with having to make do with a 7.5" or 7 5/8" rear, I found a website with some great info on beefing up those. It is ThirdGen.org then you'll see it. Most of the info on that site will also apply to the G-body 7.5's. Hope this helps somebody.

 

[bison]

Wont help to many TR owners. Those are very anemic behind the low output LT1 engines. Especially with manual transmissions. Its more cost effective to buy a used 8.5 than to spend the $ on the small one and no have the piece of mind it wont break.

 

[Donniejr81]

Yeah I agree getting a used 8.5 is a MUCH better way to go, but to the best of my knowledge, alot of the stuff you can do to strengthen a 7.5 will work on the 8.5's too. Just food for thought..............

 

[VictoryTrans86]

IMO it doesn't matter what you do to a 7.5 rear, it WILL NOT last behind a car with any decent amount of power, and the 7 5/8 is marginally better, and I say that loosely. Its the small ring gear that breaks alot of the time, and its unfortunate, but nothing can really be done about that. I've seriously seen a 305 Monte Carlo, w/ maybe 320 HP break 2 seperate 7.5's in a 2 month period. They were bone stock, but you get my point. Put the money and time into an 8.5" and be done, never have to worry.

 

[mach.80]

Thanks for posting it up though. Some people will just want a little extra security in their 7.5.

 

[QwuickTurbo6]

Careful with the "low output LT1" stuff!:biggrin: