True Trac Diff??

I have one in my Strange 60. I am only planning on running 500 hp to it through an automatic, so I can't vouch for it's strength. So far I can't tell that it's any different than any other third member. It did sound a little different when we turned the pinion. You could hear the gears meshing, but that's about it. Dr. Diff said it would be a good upgrade and that I could pretty much forget about my rear end afterwards...