This is a good reason to get way out ahead of the contemplated weight of your new camper and truck’s payload rating.
We have about 1K pounds of headroom with our Northstar/F-350 payload rating.
Some would say, “get way more truck than you think you will need for your truck camper”.
2020 Ford F-350 XLT FX4 4WD SRW SB SC 7.3L Godzilla Gas TorqShift 10R140 397 amps dual Alt dual batts Frnt Dana 60; Rr Dana M275 E-locker 4.30's 4580/4320/4066# payload 7243# curb wt. 11,300# GVWR 5-er prepped. 2020 Northstar Laredo SC, 12v compressor fridge, cassette, 320w Solar sub zero insulation.