Measure the wheelbase. A 3800 one-ton is 137', as is a 4100 1-1/2 ton. But the ton-and-a-half will have an obviously different rear axle and front hubs.


1951 3800 1-ton
"Earning its keep from the get-go"
In the DITY Gallery
1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971.