what's a 8 3/4 for a body worth?

I got one at a heck of a deal and I'm torn weather I should sell it or put it in my car, on one hand I'll have to spend a lot to put it in or I could sell it and use the money to fix other things on the car. but the main question is what is a A body 8 3/4 rear (either 741 or 742 can't remember) with 2.96 gears open small bolt pattern, center section and axels are removed but its all there with the drums.