How would I know? It's hard to tell with 8800 gvw truck actually. When I go over the pot-holes / pavement breaks with all the road construction going on... it's hang on & hope the truck comes down in your own lane! Today, running empty on a road I do not often take... I noticed bumps that I got 2-3 jounces on...I don't go off road. Cost is a factor. Anybody have recommendations for good shocks at a reasonable price?Thanks guys,Russ