i dunno wat all u guys r talkin bout i put my parallel on my truck on the outside of the frame rails and i have a step side and i think the bed is tighter to the frame then a reg bed? but anyway i had no troulbe puttin it on everyting fit fine it was a peice of cake but i wouldnt put one on again im doing a lever setup this winter if u want ill show u pics of mine but i dont no how to post a pic and for some reason no one will tell me how o well later Joe