They are ok but here's my issue. I have mine set up about 1 1/2 inches from the leaf assembly. When my weak suspension travels past the 1 1/2 inches the Timbrens are in contact with the leaf assembly. They have very little give and the truck feels like it "bottoms out". It is just against the Timbrens making for a rough ride. My suspension is about as weak as they come making the situation more noticiable. My truck does ride nice without any load on the suspension thus the reason I haven't replaced the mains or beefed up the leaf assembly. I like the bags because you can adjust them and keep the soft factory ride when you are not under a load. Just my 2 cents.