I'm over 40 and have 20's on three of my trucks. My '47 COE, my '51 4400 and my '52 6400. 7.50-20's...

Wheel and tire choice can affect your brakes. While we've talked about height, width can have an impact too. If the weight of the wheel/tire combination have increased that will reduce your braking effectivness.

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...