Polyurethane Cab and Body Mounts for the Jeep CJ make for a great replacement to factory rubber body mounts. This kit will replace all OE bushings (sleeves and hardware not include). Polyurethane body mounts last longer; the durable build quality gives these bushings the potential to last up to 3 times as long as rubber factory mounts. Polyurethane has a higher load-bearing capacity, unlimited tear resistance, tolerant to grease and oils, and a better compression set.