Stuart, I think I know what Apache Kid is talking about. Jeep Cherokee and Wagoneer (the late SFA versions with the coil springs) have a tendacy to do just that, especially on a hard turn. They tend to run with a very deep caster angle, 7 degrees. They will actully hop so bad on some models that they are undrivable. It's worse on the full time 4x4 versions, especially when a stiff shock is installed, but even the 2wd versions will do it. The solution is to reduce the caster angle to 4.5-5.5 degrees.
Something that has me wondering is- Why so high on the suspension? Also, you may reconsider the use of air shocks to get the rear up. They are not designed for that purpose, and may fail prematurly.
