Almost lost a wheel

33IMP said
Not really, I think the hub would be too hard to tap by hand. I was just kinda assuming the splines in the 7/16 studs would be big enough (and MAYBE the same) to substitute a 1/2 stud with the same spline size.
Well you know what happens when you assume. I guess if it was that easy, it would have been done, many times, and there'd probably be a sticky. lol.

i tossed the studs, but the hub i have measures .540(ish) on the hole.

some 1/2" studs i have kicking around obviously fit thru the hole no probs, so yeah it's feasible.

poking around on dorman's site i came across some 1/2-20 studs for mid 70's ferd, lincon & merc that have a .545 knurl, but seem pretty short at 1-3/4" and the shoulder length might be excessive, preventing the drum from seating. but i'm guessing it could work in a pinch. maybe.

the other option would be for gluttons of punishment: drill out the hubs to accept a more common knurl size and go that route...