the truck does have 20" rims on it. i am so confused i do not know what to do. I have contacted several folks about different Chevy ton trucks, All are from 66" to 72" center to center across front tires. the 46 i have is 57" across. I considered going to a more modern running gear. I hear lots of horror stories about the old 6 cylinders, slow in traffic, overheating etc. maybe if i go with a later model. i can just remove the front fenders and go from there. man am i confused, has anyone ever ran into something like this? HELP! Wreckerman