Hi guys,

I was just wondering if anyone happens to know if this will work.

My brother has a 1985 Trans Am 5-speed with 3.23 gears I believe (stock) and I have a 1988 Formula Auto with the stock rear (2.73 gears with no posi).

I just bought a 12-bolt for my 2002 Z28, so I now have two 10-bolts sitting in my garage, one with 3.42 gears and one with 3.73 gears. If it will work, I would like to put one of them (3.73 gears) in his Trans Am and then put the 3.42 rear in my Formula.

Does anyone know if the swap would work or what that swap might entail? Thanks.

PS - I know the 10-bolts are weak, hence the 12-bolt for my LS1, but I don't know much about the reliability or strength of the stock rears in our third gens. Any info would be appreciated!

 

Its a bolt on swap. Youll need wheel spacers if you want to run your stock wheels. Adapters can be found skulte.com.

 

actually its the other way around. 4th gen rears are wider than 3rd gen, so they push the wheels out 1" each side. might be hard pressed to find an adapter that will take care of that


also, this topic has been discussed in GREAT detail in the Drivetrain section

 

Thanks for the info guys. I will do another search to see if I can find the threads you mentioned.

 

[quote=TexasLT1;3335027]actually its the other way around. 4th gen rears are wider than 3rd gen, so they push the wheels out 1" each side. might be hard pressed to find an adapter that will take care of that


Doh!