64 rear end help

I couldent find a spot to measure from the backing plate because it wasint one flat surface. So i measured from the outter part on my drum where the wheels actually mount against the drum and it was just about 58" from outside to outside. anything a little smaller could be ok too i just cant go any wider than that because of the tire clearance against the fender.
That's pretty wide for an A-body. It will limit your tire and wheel choices. The last time I checked it was around a $100 to get a housing narrowed and $300 for a good set of steel axles to go with it. I'd get them from the same place so there is no question about fit. They'll need to know which brakes you have to get the correct length. This is not a do-it-yourself job. It needs a proper jig to get it all set up and welded true. I can't believe some are recommending a Ford 9". :wack: Unless you get a 31 spline nodular housing, the 8 3/4 is stronger and a better design. Better axle bearings too.