The first thing you need to check is to see what frame year you have. Most RV manufactures change frames every four years. My Winnebago is a 2004 but my chassis is a 2003. So when I order shocks have to buy from the 2003 year. I've only had two different sets of shocks on my RV. The first set that I had on my coach were Monroe's. They were the original shocks when my coach was new. I didn't care for them. Two years ago, I put on Bilsteins and they were a upgrade over the Monroe's. When they wear out I'm going to Koni's next.