Placement of Reese standard bed rails?

Coach-man wrote:
OK, Kevin-0, from the rear of the bed it is26 ½", and the rails are 22" between them. Again I did not have a hitch, I purchased a Pullright Superglide later when I purchased the fifth wheel. I cut the bed liner, so the rails sat flat on the metal bed. I used the above measurements to locate the rails, then drilled down thru the bed, and used the bolts to locate the frame brackets. Not a particularly hard installation, but take your time, measure twice, cut once! You are not playing horse shoes, so almost does not cut it! When finished, the super glide sits perfectly, with the pin just in front of the rear axel.

What truck are you referring to , I assume its a 2001 Superduty thats in his signature ,and for that truck, the measurement from the rear of the truck bed to the rear of bedrail is 32*1/4 " not 26*1/2 . I have installed two of those kits in ford superduties . Just to verify, we are talking the same bed rails Reese 58058, thats the bed rails that comes with his kit # RP 50082-58

I just walked up to my fiends house two doors up to verify the 32*1/4 ", and thats the Reese measurement. His is a 2002. He also has the 2700 Superglide hitch If he places that bedrail 26*1/2 from the end of the bed he won't be bolting it to his brackets underneath, it will be off nearly 6" .