The thing that started me thinking about it is that I have the '73 1 ton duallie parked next to the 3800 right now. The '73 has 16 inch radials on it and they are about 28 inches in diameter.
'73 next to 3800. Note that the 3800 front tire in the picture is flat. The rears on the 3800 are about 32 inches inches diameter and the fronts about 33. All six are 7 x 18.
The 3800 front tires are about 7 inches from rim to tread. I guess that doesn't really make any difference. The big issue is the overall diameter, and I think Grigg gave me a figure on that once.
Another thing that makes this an issue is that both front fenders have been dinged up more than a little. I can pull the edges out some for now, but I don't want to take them off yet. It also looks like the passenger side front wheel is pushed back a little. I haven't been able to get under it to measure yet.
3800 PS Front Fender It really looks to me like I'm going to have clearance problems at the rear of the passenger's side fender if I don't do something.
It's interesting about the 17.5 tires though. Since you say they are an expensive option, they're out, at least for now.
