Anyone have a set of 7 1/4 BBP axles they need to get rid of? Dr Diff still out

I never liked how close the holes are the edge of the flange. Plus I don't trust the machine shops here really.
you're overcomplicating this. just get a pair of bolt on billet adapters. it also widens the rear track out 2", which actually makes a duster/dart sport look correct, and not like a hippo in stillettos.

I bought a pair from these guys
https://www.ebay.com/itm/173967013147 but had them customized in this way:
1) center hub 59mm (2.32", SBP axles are 2 5/16", or 2.3125", this will make them hubcentric-- also specify them to keep the chamfer they put on the bore down to like .040-.050")
2) installed studs 1/2-20 instead of metric
3) lugnuts to attach to car 7/16-20.

been running for over a year and have had no issues. prior to this on my old 5th ave I had run similar billet adapters to run 17" mustang bullet wheels for like 7 years without any issues.

my rear I think isn't terribly long for this world, there's a lot of backlash, but it's actually the center pin hole in the differential is wallowing out. I plan on eventually replacing the axle with one from a ford ranger, which is 1.5" wider than the A body axle, and should put the tires in about the same place as the current axle with the adapters (well, it'll be 1/2" shorter)