The easiest thing to do is get some 22.5 hoops for your dayton's. That is what I am going to do on my C50. They fit right on. I have seen them as cheap a $80 each in white.

BaconFarms



1948 GMC 2 Ton
1958 GMC 370-8
1965 GMC 5000
1970 Chevrolet C50