I have a 2021 GMC 3500HD and a 2021 Grandby. Originally I thought I wanted to leave the tailgate on, so I measured and looked at trimming the bumper blocks to bring the front wall of the camper within 1/2 inch of the front bed rail. Even that did not provide enough room to close the tailgate. I believe the bed on the 2021 is a couple of tenths of an inch linger than the previous model. I don’t think you can get a Grandby into a late model GM and close the tailgate.Grandby is the way to go in my opinion, especially if keeping it light is important to you.. Mine is exactly 8 foot so tailgate should close, my bed it exactly 8 feet and I cannot close it with the camper on (bumpers on the camper might have to be trimmed?)
The Guenella is nice, going to be on the heavier side.. but they make great campers also..
On the other hand, if you tried it out I don’t think you’d want the tailgate there because you’d have to bend over a lot more to get in and out of the camper door. It’s a lot easier to step in and out from a lower level.
Edited by Jon R, 29 December 2022 - 07:06 PM.