Quote Originally Posted by MSHardeman View Post
Doesn't the rear diff get some kind of limited slip addative in the fluid? Someone? Anyone? I ask because if the fluid is low then you will want to put in more fluid, but also add the right amount of addative to get everything to work right.
I recall when I had my shop change my diff fluids, Royal Purple diff fluid said no LSD additive was needed, as it's formula handled it.