Ford 9" set up for a 73+ ABody

What you want is hard to find......You want Mustang or Lincoln Versailles for width, there may be others

(You can imagine that the 'stang ones are in demand, too!! with Ferd owners)

The upside of the Versailles is that it's within reason for width, and has factory disc brakes, and the mounting pads can be used as is so far as width. I thing the pads are 1/4" wider than stock

Downside of the Versailles is that they must be shimmed for angle, cost a lot, are hard to find, and parts for the disk brakes are getting "dear" to be had.

I don't recall offhand, the exact difference in width between typical A body and the Mustang rear. Some wheels won't fit, and they ARE a tad wider, but not much.

I wend Ferd for the same reason the OP did.......an 8 3/4 is not cheap to be had, you must either redrill an A body or have axles made, and parts are not to be had. There are 20X as many (at least) Ford 9" show up on CL AT LEAST compared to 8 3/4