hey Dude! [hadta say that

] welcome to the garage - not a real huge space, so ya don't hafta YELL!
the earlier Chev car 5 bolt hub and drum [say about 50-57?] will fit the 5-9 ½T spindle - there apparently is a roller that'll fit too, but if ya do a search of the forums here I think you'll find the general opinion in previous discussions was: why bother? the ball's do the job quite well, and have for 50 years, providing you don't overtighten the spindle nut and keep'em greased, and the rollers don't always fit the worn spindles mosta these trucks have -
D&D Antique Auto useta list replacement rollers for most old GM applications, tho not on the website now
maybe somebody has used the rollers since those discussions? wanna relate the experience?
Bill