I'm getting ready to pull the body back off the chassis and check all of the measurements. The chassis is off in several places. The center tubular crossmembers were welded in 1/4 inch off left to right, but the side rails measure square within a 1/8 inch. In addition, the top front tubular crossmember is 1/2" higher than the side rails. This wouldn't have been so bad if the crossmember would have aliened with the channel in the floor board, but it didn't come close. I wasn't expecting the width of the chassis to be off- at least not that far. I didn't catch it until I tried to install the spreader bars (which are stainless). Now I have to fabricate steel bars and have them chromed. I could spread the rails but I'm building it as a highboy and would really stand out.