1965ChevyC10,
the short bed is 6 feet and an inch I think inside the bed box. The fenders are the same, the tailgate, etc. The frames are a little longer, the step is longer, part of the bed box sides are longer.
These are actual measurements I took of my truck bed, I've had 'em posted on my website for a few years:
The long bed step side bed measurements:
from the surface of the bed wood to the top of of the bed rail - 17 3/8th inches
Bed Length 8 feet 4 inches (100 inches) - outside edge to outside edge
Bed Width 4 feet 2 inches(50 inches) - inside to inside
Usable Inside Bed Length 8 feet 1 Inch (97 inches)
33.68 square feet of bed space.
The wheelbase, the distance between the center of the front wheel and the center of the rear wheel is different as well, the long bed is 127 inches... and off the top of my head I want to say the short bed wheelbase is 116 inches(I might be off on this one).
-W
