That interesting as my brother and I were just talking about that. I found some pics of a 10100 on the internet and it had the six holes on the front. We were both kinda wondering what was up with that. As long as we had the truck it was like that. Perhaps it was changed early on in life to haul heavier loads.I always kind of wondered about the 22.5 rubber on the front. The rear axle are six hole. Along with the serial # on the id plate it also says opt82. Does anyone know what that means?
