Great product. Stronger and more powerful than factory. This is the "HD" version and is more powerful than the "normal" Moog version. If you want to impress the girls by messing around with your classic GM truck, BUY IT. DON'T FORGET Moog Trailing Arm Bracket #K6723. I'm a college student at a university and now I don't worry about breaking details when showing girls in mud, snow and medians. Much better than the factory and, as they say, much more powerful. Also buy Amsoil Dominator racing grease, that's what I use and it's the best on the market. Don't skimp on these parts. Installed on a 2002 Z71 Suburban.