Rear Diff

[talontl]

I have a 90 TSI AWD and thursday night I was dinkin around and dumped the clutch and blew out the rear diff. I have a 92 TSI AWD parts car and need to know if the rear diffs are the same as far as the splines and gears???
When I drove it home it revved high and wasn't hardly goin anywhere very fast and couldn't go over 25 mph or it would shake and rattle!!
Help me please!!!

 

[twenty5psi]

Originally posted by talontl
I have a 90 TSI AWD and thursday night I was dinkin around and dumped the clutch and blew out the rear diff. I have a 92 TSI AWD parts car and need to know if the rear diffs are the same as far as the splines and gears???
When I drove it home it revved high and wasn't hardly goin anywhere very fast and couldn't go over 25 mph or it would shake and rattle!!
Help me please!!!

nope they wont,ill send you my good 3 bolt rear out of my 90 for your 92 4 bolt....

now all kidding aside,that 92 depending on what month it was has a beffier 4 bolt rear compared to the puney 3 bolt rear that you broke and alot of people break..we like to upgrade to the 4 bolts that come out of the 92 and up..itll work..not sure if its a simple bolt on but i bet someone in here can tell you that it is or isnt..

 

[talontl]

It's an April of 92. Don't know if it matters or not but the 92 is a 6 bolt motor.

 

[twenty5psi]

Originally posted by talontl
It's an April of 92. Don't know if it matters or not but the 92 is a 6 bolt motor.

then it probaly has the 4,6 bolt combo which is lucky on your part..take off the back wheel and see if there are 4 bolts connecting the axles together..itll either be 3,or 4 bolts..

 

[NOSNUSE]

It will work as long as both cars are standard or both are autos, the gear ratio is differnet in the auto rears and can't be used on the manual cars. Dumping the clutch like that will break stuff, the first time I blew the rear out of my car was doing dounts in a snow covered parking lot.

 

[talontl]

Originally posted by NOSNUSE
It will work as long as both cars are standard or both are autos, the gear ratio is differnet in the auto rears and can't be used on the manual cars. Dumping the clutch like that will break stuff, the first time I blew the rear out of my car was doing dounts in a snow covered parking lot.

how much is involved in making it a 4 bolt, do you need to swap out the hubs also?

 

[Willjs7]

Seems easy enough, You do not have to take them out from what i see


http://www.vfaq.com/mods/4bolt.html

Read that a few times and look in your manual.

 

[talontl]

Thanks man, I just didn't want to go through all that work and find out the rear diff was not compatable.
looks fairly simple.
Thanks, Travis

 

[talontl]

Rear diff is in and works great, thanks guys