[oldman3]

Sid, NO pro builder here, but I checked by sons truck and here are the measurements I got.

1. From front of bed to cab at the lowest point is 2-11/16" (see arrow and bold black line in the first pic.

2. From front of front stake pocket to cab is 4-5/8".(see pic 1)

3. From back of front stake pocket to fender is 12-13/16" (see pic 1)

4. From front of rear stake pocket to fender is 5 -1/16" (see pic 2)

5. Top of fender to bottom of bed rail is 2-3/8"

Pic 3 is how tire is centered in fender.

All my measurement were taken from bottom of stake pockets as close to the bed as possible.

My sons runningboards line up with the brackets

Hope this helps....Jim