Thanks for the replies. I like the idea of centering the fender, but I think that would mess with the running board placement. That particular dimension becomes a problem as I don't have the front fenders on. Kip was kind enuf to measure his long bed at 41 1/4. The short bed I have access to has the measurement at 42 3/8 to the top most bolt hole. I placed an order yesterday at MAR-K and asked them the same question. They indicated that fender placement holes on the long and short beds were the same from the rear of the bed. Good folks at MAR-K, who so kindly sponsor this forum, would you care to weigh in on this???? Thanks, Ron