OEM 2005 Chevrolet Astro Transfer Case Seal

2005 Chevrolet Astro Parts Questions & Experts Answers

• Q: How to replace the rear transfer case output shaft seal with a new transfer case seal on 2005 Chevrolet Astro?

  A: The first task for replacing the rear transfer case output shaft seal requires elevating the vehicle. When replacing the rear transfer case output shaft seal the process must be done carefully to avoid damage on transfer case and shaft sealing surfaces which can cause leakage or necessitate new components. Start by removing the transfer case rear output shaft seal then analyze the rear output shaft seal bushing for wear or scoring conditions. The transfer case rear bushing remover and installer tool (J 45380) enables bushing removal through finger placement in front of the bushing followed by tube and forcing screw attachment and wrench operation on the forcing screw. The installation requires the j 45380 tool to position both bushing and tool correctly at the case before hammering in the new bushing. The drain hole of the rear output shaft boot seal should always point in a downward direction towards the ground. The final step involves using seal installer (J 37668-A) to put the transfer case rear output shaft seal in place followed by returning the rear propeller shaft and checking the transfer case fluid level before lowering the vehicle.