[Classic v6 GMC's]

Originally Posted by aerotruk63

skid steer wheels are similar in assembly.
Your centerbore is how much in diameter.
6 wheel clips on our wheels generally 3.

I will measure the centerbore tomorrow.
I thought the 6 clips was interesting as well.

Originally Posted by aerotruk63

Neat brochure.

Originally Posted by factorystock

Sorry, looks like my ad, can't seem to find the magazine for date, however these wheels came out in late 1963 in the aftermarket for 1/2 and 3/4 tons of all makes, when camper craze began. These rims could have been special ordered from '63-'66, as your K 20 indeed was. They were a standard option beginning in 1967. What is interesting is that the manufactures, either Kelsey Hayes, Goodyear or Firestone, used the factory correct 17.5" centers and just rivited on a generic 16'5" wide base drop center rim. In other words, the part the hubcap goes on is a factory piece and has correct offset. Here is a '60 Chevy with them, but, must have been put on at a later date.

Thanks for the info. The centers do look factory. The 60 looks cool with them.