Ram 2500 and 3500 operate differently ... surprise surprise. The AUT Air level on the 2500, you could hit the "ALTERNATE HEIGHT" button empty and it would drop. The 3500 (2020) will not droop without a load ... not as good, IMHO I just raise the fifth wheen until it has picked up a good amount of weight and unhook.
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RAM 22' DRW 3500 Crew LB 40 gal reserve tank / RETRAX Bed Cover / 2020 373RD HC / IS / MOPEKA Tank Monitor / Furrion Side&Rear Cameras
Slide Toppers / EMS-HW50C / Sailun 85's
3rd AC / Dometic 320
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