Guess I couldn't take the bouncy ride anymore so I finally took action and seem to have a pair of pretty good shocks. My wife's old van is almost like new again. I keep putting off repairs because the original shock absorbers cost almost three times as much. Good thing I wasn't in too much of a rush to buy from a local retailer. The drums were very simple. I gave it 4 stars because the air line tee that came in the box was not the fitting that attaches to the compressor. I went to my local parts store and bought a replacement line for the entire shock system because the hoses were worn out from the weather and small leaks keep the compressor running for a long time. I've ridden them about 450 miles and I love how they handle. Excellent purchase.