rear end

Well where to begin. In all likelyhood the rear end is a 741 which of the three 8 3/4 models is purported to be the weakest because it has the smallest diameter pinion gear shaft. It can be used in moderate applications but consider that if this rearend has been sitting for a long time all the internals will have to be replaced due to rust. Basically you're buying the housing but you are getting the brakes and operating gear so 100 bucks is probably a good deal. There is an off chance the rear end is a 657 in which case run like hell. http://www.moparts.com/Tech/Archive/axle/1.html

Terry