I was browsing craigslist and I found this guy selling 3.73 gm gears from a 95 trans am. He says its 3.73 gear set w/ limited slip carrier. Also he says the ring gear is bolted to a limited slip carrier. And he's selling it for $115 . So my question is should i but it ? Will i over pay for this? How hard is it to do this myself or should i take it to a shop to be done? Will it work on my V6 camaro 2000 ? Thanx in advance.