Easy to install... . just dont lay in a fire ant nest while putting them in like I did! Same problem with my rig, wanted to raise the front a bit. Bags helped some, but not exactly what I expected. Max psi is 30lbs. If the bags were taller, they might raise the front back to showroom height. They are a bit short and when inflated to max pressure might raise the front 1"-1. 5".