If you are limiting your question to 1972 3/4-ton Chevy and GMC trucks, they all have 8-lug wheels. Some earlier and later 3/4-ton GM trucks have 6-lug wheels. I can't speak with authority to the leaf vs. coil question.


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...