where to find 8.75 sure grip units used

Divenut said
Does the entire rearend need to be swapped, or can one just swap in the limited slip/posi internals? I ask because am in the same boat as Mopar2, i.e. open diff.

I dont have an open diff, I have a spooled rear-end and want a clutch type locker since its ONLY a show car cruiser.