I run 3 in the front and 1 in the rear unloaded. Depending on the load behind I adjust my rears upwards from there. With my 35' TT behind me (800 lb tongue weight) I set it on 3 in the rear, higher with larger weights. When off roading I put it on 5 in the front and leave it on 1 in the rear - that works great. This is after about 25,000 mile on these shocks in a variety of conditions.