...I am planning on taking a long bed ton and a half and shortening it to the standard 4400 short wheelbase...
I'm confused, a 4400 is the long wheelbase 1.5 ton at 161".
A 4100 is the short wheelbase option at 137" which is the same wheelbase as a 3800 pickup with a standard 9' pickup bed.
So, do you plan to make a short wheelbase 1.5 ton which then is not much different than a 3800 pickup (use same bed)? Or do you want to leave a long wheelbase 4400 alone and make a 2' longer pickup bed to fit? The difference in wheelbase is only 2'.