Jeff - did/do you have both rear air bags plumbed together? The single pressure gauge implies so. I plan on running air bags in my LJ, but plumbed independently.
Do you find the gauge reveals chronic air loss, or is it just a "nice to have" data point? I am not criticizing at all, just wondering if there is a benefit to having dual gauges for my own application. At the moment I am not planning on it. I will have an air gauge for the OBA storage tank, but that's it.
Cheers,
Jim
Jim,
Yes, mine are plumbed together.
I probably can claim 17 years experience with Air Lift bags (9 years in my pickup and 8 in my LJ) and almost 250,000 miles using them (the LJ has 180,000 miles on it and the pickup has 110,000 and I installed the kits fairly early in that mileage). In all that time, carrying lots of loads in the pickup and doing lots of trail and overlanding miles in the LJ I've never wished I had plumbed them separately. In theory it sounds nice to be able to adjust each side separately, but in practice I've never felt the need.
About the gauge, it has two main uses:
1. Detecting leaks. One of the bags in my LJ developed a slow leak and I didn't know it - this was before I installed the gauge. When the bag has no air in it, it's likely to spin inside the spring as the suspension flexes, and this twists and eventually destroys the air line, which was what happened to me. Air Lift replaced my failed bag for free, and when I was installing the replacement bag I added the gauges to both Jeeps. Now I can monitor for slow leaks.
2. Changes in elevation can result in excessive pressure - if I start out here in NY at 800' elev with 30 PSI in the bags and drive to Colorado and take on some trails with 12,000+ elevation, the pressure in the bags at elevation will be higher than the maximum recommended pressure. I usually let some air out at elevation to keep the pressure within spec.
BTW I carry a small bicycle pump (the type that would mount on the frame of a bike) and use that to air back up - the bags aren't too big so it doesn't take too long to get back to pressure when I'm at lower elevations.
jeff