Then you're in business. All you have to do is verify outside dimensions are the same.
Flange thickness, offset from back face to top of flange, that kind of stuff.
The hardest to measure might be the distance between bearing races front to back.
That's because if these all came from Broncos, then the insides are all identical in spline count, diameter, wheel lug pattern, bearing and race part numbers, and all the big items.
Bottom line though, is if you can install one on the spindle with the correct bearings and adjust the nuts down to spec and the bearing freeplay falls within spec too (.001 to .010 inch) you're golden.
Good luck.
Paul