[joeydurango]

I install the same way as slikside - hammer the caps on with the heel of my closed fist, on the side of the caps, where they are strongest. 4-nub wheels, freshly powdercoated. I do have the '73 caps, though (I painted the bowties blue), and I understand they may be a stronger material.

To remove, I simply took a slim piece of round aluminum stock, bent one end into a crude handle, hammered the other end flat, wide, and rounded on an anvil and then bent that flat piece to 90*. To remove the caps I just insert the flat edge and pull sharply on the handle. No damage to wheel or cap. Free if you have random metal lying around like I do.