[bigblockv6]

Originally Posted by bigblockv6

It's a Fenderside dually! Back then wide off road tires were not around so my father got adapters to convert to dual rear wheels for his off road and hunting trips. After he would come back home the dually's would be taken off after a few days. By late 1965 wider tires started coming around and he switched to those and never ran the duals again. Here's a pic from 1966 with wider tires spare and all, he even had the right side rear fender cut out and mounted a second spare tire.

Or possibly a 31x10.50 size.