I was having problems with my differential leaking. I tried to fix it once by myself using RTV, then also had a shop try to fix it...also using RTV. Both times it kept leaking.
So I went to Lubelocker.com and got a gasket (8.8 diff). I cleaned the cover and the differential and used only the gasket, no RTV. The differential hasn't leaked at all, and its been a few weeks since the installation (I installed it).
I'm extremely happy with this product and would definitely recommend it to anyone that's having leaky diff issues.
-Fabtech spindles - 35x12.5x15 BFG Allterrains - Series 97 Rockcrawler rims - E9000 Mile Marker winch (custom mounted) - Two 8" Prcomp 150 watt lights - Two 8" RF subs-Power windows and Locks - Bulldog alarm system - Custom rear bumper(not installed) - Plus More...