Truck camper for Toyota Tundra

Former owner of a 2007 Tundra here! Hauled a 2007 Hallmark Milner on my Tundra. Added Firestone ride rite airbags. It was a great combination for just me but I was always watching the weight limit as the camper takes away most of the available payload. It was a 4X2 just cause I wanted the extra payload. I highly recommend you take your truck to the scales and get it weighed and then subtract that from the GVWR posted on the sticker in the drivers door jamb. the weight that is left will tell you how much camper, gear and passengers you can carry. another poster above put a link to Truck Camper Magazines guide.....I recommend that you check that out......I can't tell you how many different campers and truck combinations I built with their info before I started building my new rig.