The subrails I installed did not have the holes in the correct location, one hole was but the other one was too far forward. I had to drill the rear hole in the correct location. This was a bit of a challenge because the body was in pieces and it was hard to convince myself that this "new" subrails could have the hole pattern wrong. So I mounted the cowl section on the frame, then the back section and doors and spot welded the doors in place. Sure enough, the subrail holes were not in the correct location, but or course the frame holes were correct! I back drilled the frame holes and everything fit perfect. No idea why the subrail holes are located in the wrong position, but they were on mine. Will get some photos of mine today so you can compare.