wheelbase spec's

[N242MUCH]

ok, i know we have talked alot about putting body and bed on a newer frame. i also know that mudder67 did this with a 77 frame. i have a 1969 3/4 ton 4x4 and would like to put a 1989 or newer frame under it. can anybody tell me if this can be done wheelbase spec wise that it. not sure but i think the truck wheelbase is 127". somebody help me with this. if you guy's agree that this can be done then i would be in the market for a rolling chassis. 3/4 ton that is with every thing there except the motor, cab and bed.