I will start off by saying that the Replacement Bushing # RM-205381-00 is the direct replacement for the Roadmaster Polyurethane Bushing Kit for 1-3/8" Diameter, Factory Rear Anti-Sway # RM-4139-300. To further that, the Replacement Polyurethane Hat Bushing # RM-205223-00 and Replacement Bushing # RM-205219-10 will also be direct replacements for this kit.
As to the measurements, the # RM-205393-00 will measure .62" thick and have a 1.28" outer diameter and .43" inner diameter. The # RM-205381-00... view full answer...