My LSD is definitely grabby when turning forward and noisy if turning in reverse. Lube change a must this week. GM, Amsol or Royal Purple?
:agree: I use it in my tranny & differential have used their products for years and am very pleased with themI recommend Royal Purple. It also comes with the Friction Modifier already added. When I had this issue early this past summer, I reviewed a bunch of posts here and most (if not all) had very good success with the RP product.
I tried it on my Solstice and all the noises went away on my rear diff.
Very happy with the Royal Purple product.