Drag Racing With Clutch Type Sure-grip

Dr Diff (Cass) has repair parts or buy a new aftermarket.
Mopar or Dana 60 "Powr-Lok" Internal Parts Kit
Mopar or Dana 60 "Powr-Lok" Clutch Pack
Mopar 8 3/4" (8.75) Clutch Type Sure-Grip ("Powr-lok")