Hi,
I have a couple of interesting and elbow-greasy options to add lsd to a 91 na coupe. Please tell me if I am totally off, because I'm pretty ignorant about rwd
vehicles and lsd's in particular.
a) Can I buy an LSD from a 2nd gen TII and install that (or have installed) into
my stock 4.10 rear end?
b) Can I swap a whole FD rear end into my FC? I might have a line on a nice one.
thanks,
spectre_man

 

A - No
B - Requires alot of customization.

Look to a stock lsd from a GTU would be the easiest route, unless you're pushing some sick power.

 

Thanks. Will the stock LSD from a GTU be a simple install?
spectre_man

 

No, GTU used the turbo drivetrain. Neither will bolt into your car.

 

Lies!

All series 4 GXL's had a limited slip as long as the 89-90 (?) GTU. But the GTU had a 4.33 final drive. The GTU did NOT use a turbo drivetrain. Dropping in a NA lsd into a NA drivetrain is pretty simple.

 

Was it the GTUs, then, that had the turbo running gear?

 

my friend has a 91 n/a and it only took us two and a half hours to put in a 88 GTU diff.look at my pics if you want.his 91 is the black one, the silver one is my 88 GTU and the red one is a stock 91