Did my research and viewed videos on utube and decided to try these on my 2018 E450 class C motorhome. They looked and felt like a quality part , very easy to install and greatly enhanced the ride quality . I highly recommend these and believe money well spent.
This item replaces the stock bumper on the front suspension. It is an easy project, but requires a jack sturdy enough to lift the front of the vehicle and 2 jack stands for safety. Also requires a 10mm deep socket. It seems a bit expensive for a chunk of rubber with a threaded shaft, but does improve the ride. I did the rear ones at the same time.