8.8 or 7.5?
 

I wanna order 3:73's but not sure if my rear end on my 90 GT 5spd is a 8.8 or 7.5 how can I tell?

Every GT comes with a 8.8, was your a conversion? or is it a real GT? If it is then its, of course, a 8.8.

By the way, 3.73's are great!

Its an 8.8 rear end

someone just told me the 4lug's are 7.5, its a real GT I even looked up the car history sing the VIN#, thanks.

not ALL gt's are 8.8 i don't think they changed them all to 8.8 till 86 or so?


i have an 84 with a 7.5..



if you go to summit online catalogue, they show gaskets of the rear diff bolt pattern..



the 7.5 is oval and the 8.8 is more round..

whoops, read first answer question later.... :(


on a 90 the guys were correct, 8.8"

Maybe I need to be more clear. ALL 87 - 93 Gt's have 8.8 axles in them.

Thanks for your help my gears should be here by the end of the week :-)

Are you installing them? If you are, do you know you need to check/set the backlash with a dail idicator and a few other important things? Just warining you if you didn't know.

Black Sheep
 

Not trying to get flamed or anything,but is the 86 GT the black sheep of the family?

The 1986 Mustang GT's were the first V8 Mustangs to get the 8.8 because of how much torque the new fuelie engine was making.

The 4 headlight cars are really starting to become hard to find.