My setup is very unsophisticated. I have air bags on the front only and I put air in by using my small portable air compressor, so I probably don't know what I am talking about.

However, I think if you have two gages one is for the front and one for the rear. I have been told that the automatics have a limitation because the compressors only will put 60 lbs max. The bags are rated to 90 lbs. I have about 10 lbs more on the right side because I have my water and fuel tanks on the right side. It probably doesn't make any difference but it makes me feel smart. My wife says since I sit on the other side that evens everythings out. ya unhuh!

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Shortcuts Always Take Longer

Dave, I suspect your water and fuel don't affect your front air bags very much. I would suggest measuring the bump stop clearance on each side and adjusting the bags accordingly. You will probably be better off with equal pressure unless you are REALLY a lot heavier than the co pilot.

If I remember correctly, the tag axle air bags are limited to 60 lbs. On mine, there is a gauge for left and one for right.
BTW, many leak at the valve panel. I am going to replace my valves with schraeder valves to eliminate the leaky control valves.