I'm not absolutely sure, but I think my 46 one-ton Panel has larger wheel openings than the 1/2 & 3/4 ton trucks. Here is a pic with 30 inch tall tires on S10 suspension. The tires still look too small IMO.
http://www.enzoco.com/mike/truck/part3p3.htm
Can anyone with a 41-46 1/2 ton confirm this for me? Did the 1/2 ton trucks have smaller openings than the one-tons? Cheers, MV

46 Chev One Ton Panel - S10 Frame Project

"What if the Hokey-Pokey is REALLY what it's all about?" - J. Buffet