Ok I have a 92 GMC Sierra 1500 two wheel drive. It has the usual one wheeler peeler. So my question is if I get a rearend out of a 92 GMC 1500 4x4 can I just pull out the splines on that and put mine in. The reason for that would be the whole six lug and five lug thing. Well any advice or help would be greatly appreciated. Thanks in advance