8 3/4 axels???

Tyler wheel offset dictates how wide you cut the housing. Nothing else. So there's no way we can tell you how wide to cut the housing. If you can tell us the wheel width and offset we can get you close but the way to properly find out what width you need is pull the old rearend and springs out and set the tire/wheel assy up in the wheel wells where you want them to be (centered in the wheel wells). Then measure from the back side of each rim (mounting surface) to the other. That's the total width the rearend needs to be from drum to drum. Don't make the mistake a buddy of mine made by buying a housing that was a couple inches narrower than stock and then having a extremely hard time finding wheels with the proper offset to make it work. Actually CB said 52-5/8 not 51.5" for stock size. Hope you don't mind I answered for you Rob.

bTW: How would you run a housing while you mini-tub?? You have to have it all apart to work on it. As I said above it's not as easy as just pulling a number out of the air for the housing width and hoping it'll work. You have to figure out what YOU need. Just because your buddy is running a certain size don't mean it'll work for you because your wheel size/offset could be different.