'70 Dart 392 Project; what direction?

Nothing exhaustive, but did a little looking around to see if I could figure out some 5x4.5 rotors. Started with the parking brake shoe and they appear to be used on a fair number of rigs, unfortunately they are either Chevy's, more Rams or a Ford trucks. This leaves zero options for a 5x4.5 bolt pattern.

There is the possibility that the width and diameter of the shoe is the same as other options, but there wasn't any data to use. So kind of dead ended there.

Best I can tell, those disk brakes won't be useful to you.
Really appreciate the legwork on that and confirms what I was suspicious of. At first glance it seems like a great idea, but likely not compatible with my setup. I think the D60 with 3.54's and powerlock is from a 70's vehicle, I'd be going through it anyways with new carrier bearings/races plus pinion seal+bearing. Looks like amazone has a cheap case spreader for $118. I'm sure with the right tools it wouldn't be a problem. I did a ring/pinion gear swap on my 2010 cummins front axle this last year and it wasn't a bad job. I think this will be easier on a bench instead of underneath the truck!

As always thanks for the input Dion! Seems like you're always willing to contribute and it's appreciated.

Mike