It shouldn’t be that hard, jack up the body, support it, roll the old pos rusted frame out, roll the new one in. Remember, I have 2 full rolling chassis and 2 sets of 31s and a set of 33s so I can play around with the wheels to make it a little easier. Lift the body with the 33s at 40 psi and then put on the 31s at 15 psi for a little extra room. I’ll be picking up a 2 ton engine crane at harbor freight on my way to pick up parts at CBI to swap the drivetrain in and out.
Good thing I’m only a month out from the swap, my rear cross member has cracked so there would be no wheeling, towing or hauling firewood this year.