If its a mopar (stock) then you have (assuming that we're talking about 8 3/4) your looking at the a clutch style or cone style unit.
Heres a link: http://www.mopar1.us/875.html
at that price, it does not matter what type, as long as it is a 8.75 mopar sure grip, SNATCH THAT THING UP!. if it is not what you want, you can sell it on here for 4 times that amount of money.lol