I just baught a 88 GTA rear end for my 88 formula 350
I was wandering if it would help my car at all. No more one wheel wonder burn outs!

With a cold air intake and new rear end could it be possible to do a 14.2

I ran a 14.7

 

u did not mention what ratio it is3.27 or 3.05 etc

 

Im not sure, i havnt picked them up yet. The guy who has it wrecked his 88 gta and he is selling me his rims and rear end for 150$ thats one heck of a deal. Im going to his house saturday morning.

I wont get it if you guys say it wont help.

it just started hailing! I just put my car in the garage.

 

i might be 3.27 ratio cause i have a 88 gta but u will have to make sure the splines match up,as for what u will get out of them i don't know.if it is a 9 bolt ,just letting u know it will be hard to find parts if it will ever be rebuilt

 

You will see a gain if you don't have posi-traction. If the 1988 GTA was an automatic it will have the 3.27 gears. If it was a 305 with a manual trans then 3.45 gears. Does your 1988 Formula 350 have a ten bolt rear end? It could very well have the same nine bolt as the GTA. Allen

 

What if it is a 305 automatic?

 

Never heard of a GTA with a 305 and an automatic from the factory. Allen

 

Im not sure what rear end my car has. I think it's a 9 bolt.
I found a site that tells if it is.

http://www.usol.com/~okfoz/88/88technical.htm

I know my car doesn't have posi. That site says a rear end without posi is a 10 bolt.

 

an 88 350 formula should have a 9 bolt posi with either 2.77 or 3.27 gears.

 

My old 88 formy 350 came with B/W 9bolt 3.27's.