52Torpedo,
Sounds like a good plan. I have 4 never mounted 7.00-18 Kelly tires just in case. My 19.5 wheels apparently came from a P30 chassis ( bread van) and seem to have more offset than the one ton 19.5s like yours. I would love to know the back spacing (measurement from the flat inner mounting surface to the rim lip) on your rims to compare to mine.
Thanks
The backspace looks to be about 8.25", give or take a little as I measured with the tire on. I am guessing that the wheel width is 6" but may be less, I did not measure that but I will. I am putting 16's back on the 69 and I was going to measure them as well to see if this BS measurement is about the same on them. I also have 17.5's on the 52 as rollers right now that I can also measure, but only 1 on each rear facing out because they would not clear the rear brakes either.