Dana 60 or 8-3/4

hi, look at his dana selection, if he has a housing from a 1/2 ton ford pickup. this is the lightest of the dana's. it will have regular passenger ends on it.
weight,? about 35# more. also, the 8 3/4 axles will slip into the diff, they;re same spline. just have to change front yoke to mopar. a bolt in setup.
the dana will roll easier.will not slow the car down.