I am starting to build my 99 - thinking about a 3" lift on 31's, but I'm also thinking that since I have the crappy d 35 rear I might as well swap it out at the same time. My question is - What rear should I go for? I am looking for something that will go in with zero problems- no mods ( is that possible?) I was thinking about calling some junk yards - is there a specific year of jeep I should ask for? and about how much $$$$ should something like that go for used. Thanks