I installed them on a 2004 Dodge Ram 2500 with a 7 inch lift, the ride was improved compared to the nitro shocks that came with the lift kit. noticeably improved. I had a shock absorber. failed about 6 months after i received them but i called bilstein and they said send it to us, within 3 days i had a brand new shock, no questions asked. Bilstein customer service - 5 stars. Overall the shocks look great, they were easy to fit and most importantly they work great on and off road. I would recommend the Bilstein 5125 series shocks to anyone looking for an improved ride quality.