Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post - Pin box destroying my Tonneau cover rails

mhs4771 · 11-28-2020, 07:06 AM

That is a problem with GMs. BIL put a big gash into the side of his box first time out. The inside measurement on GM side rails is less than King Pin to rear of king pin box. I've had to reshape the rails for my Roll-n-Lock cover a few times. If every thing is perfectly level it will just clear, but I don't think I've ever back into a site where every thing was perfectly level.

11-28-2020, 07:06 AM	#5
mhs4771 Montana Master Join Date: Dec 2009 Location: Sebring Posts: 3,659 M.O.C. #9969	That is a problem with GMs. BIL put a big gash into the side of his box first time out. The inside measurement on GM side rails is less than King Pin to rear of king pin box. I've had to reshape the rails for my Roll-n-Lock cover a few times. If every thing is perfectly level it will just clear, but I don't think I've ever back into a site where every thing was perfectly level. __________________ Michelle & Ann 2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.