Not going to swap over. The 3600's had 12" diameter rear brakes, while the 3800's had 14" diameter rear brakes.
Here's a page from the '51 Vehicle Info Kit on brakes.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
