This article may contain affiliate links where I will earn a commission. Affordable Air Suspension Repair My husband took my Envoy for a spin, and when he came back something was wrong with the rear end of my car. I thought it might have something to do with the 60lbs. of Lake Erie perch in the hatch. But after careful inspection, there was only one conclusion...my rear air suspension system had failed. As soon as I heard the diagnosis, I began to see dollar signs. My Envoy had 115,000 miles on it and is ten years old, I was afraid this repair meant it was time to retire it for good. Luckily, my brother made a few taps on his smartphone and ensured me this was a quick and easy repair. Instead of fixing the failed air suspension system in the Envoy, my husband decided to replace the air suspension system with a coil suspension conversion kit. The photos were taken before, during, and after the coil conversion kit on my 2005 Envoy. Rear Air Suspension Coil Spring Conversion Kit Choices W