This is a 3:42 open 31 spline o-axle rear end . The internals are very nice ,housing will have some minor pitting . I am going to have the housing acid dipped then i will prime and paint . Rebuilt as a open i am asking $1200 , if i upgrade to a posi i am asking $1650 , It will be backing plate to backing plate , picked up at my location . zip 60034 , Hebron Illinois .