Abstract: my steering column to rag joint bolt holes are both ~5/16", while my new rag joint bolts are 5/16" and 3/8". Best way to cope?
Following up on @A83's question from 15 June, 2021 regarding steering column rag joints... after getting accidentally bounced over a hydraulic security barrier in 2019, my (solid shaft) steering column was left with some vertical play. I lived with it until this year, and found that both the rag joint and plastic steering column bushing were damaged. I ordered replacements from SI (bushing) and Nostalgic (rag joint).
I made the mistake of not test fitting the rag joint on the steering column while I had the column out and disassembled, and now find that while the bolt holes at the end of the steering shaft are both ~5/16", the bolts on the rag joint are 5/16 and 3/8". I understand that having differing diameters reduces the odds of reattaching the steering column 180 degrees out of whack, but when my car was built (R3318, 02-18-1963), Studebaker apparently hadn't yet seen the light.
Dan Booth said he hasn't run into this before, and so I'll need to drill out one of the holes. I'm not religiously opposed to doing this, but I lack a drill press, and am not enthusiastic about doing this with a hand drill. What is your experience? Is there a source for 5/16" x 5/16" rag joints, or should I suck it up and drill out a hole to 3/8"?
@silverstude offered up some rag joint suppliers that A38 could check for his '83 Avanti, but I suspect anything with an adjustable steering column for a '64 onward isn't going to be compatible.