The cabs were the same and the fenders for 1 Ton and up varied depending on the wheel diameter. The 1 Ton Long bed PU fenders looked very similiar but were much larger than the 1/2 & 3/4 ton due to the 17 inch rims.
It is possible that some had larger rims which required a large fender with the front portion cut out more for clearance of the larger tires.
Check the gallery for pictures of the different fenders. Also check the Vin number for the original weight design.
