3500 tire pressures when empty?

[cirovihi]

Just picked up 2021 Ram Big Horn 3500 Crew Cab srw short box 6.4 gas with rear air bag suspension. Pressures call for 60 front, 80 rear. I'm using the truck for a slide-in camper. When there is no load, approximately how soft can I reasonably deflate the tires so my liver isn't being pureed into mush? I don't care about TPMS lights coming on. Thanks, appreciate any thoughts.

Just found out I should have TPIS which is just informational.

 

[Mr. Grumpy]

This forum is exclusively for the 1500. If you have questions about your 3500 you can post them here: Ram Heavy Duty Forum