Took center bolt out.
Tried 3/8-16 That’s not it
Tried 5/16 coarse thread–- that’s not it, too small a diameter

Seems like I need a 3/8 fine thread maybe...
Have puller... just missin that bolt size in my set....😞

Brian


1952 GMC model 473 dump truck
1951 Chevy 1500 stepside