just wondering if i can bolt-in a FD aftermarket lsd into a 87 T2 FC without any machining?

thanks

 

Yes, the FD Torsen will drop into a Turbo2 differential.

 

how about a aftermaket clutch type for fd? will that fit into FC?

thanks

 

The FD diff will only fit in a Turbo... not in a non-turbo, without swapping parts and assemblies.

 

The fd and TII lsd are interchangeable. So yes a aftermarket clutch type lsd for a fd will fit onto a fc, or you can get the 87-88 TII clutch type lsd, these things are pretty strong and cheaper, or might be easier to drop in the whole rear end if you have a 89-91 TII.

 

Hmm... ok this is weird...i looked into cusco LSDs and they have different part #. between FC and FD..THis is the delema. i can get a deal on a used cusco unit for FD, but my car is a FC?

should i buy it even though the part # are different? i just dont want to spend all that money and get stuck with something i can use.

thanks!

 

Does the Cusco units have the ring and pinion???

There is a difference between the ring and pinions between the two versions.

 

Do i reuse my stock ring and pinion?

well here's a pic of the lsd maybe this will help?