Robinair (10861 Clutch Plate Remover/Installer - For A6 and R4 Robinair Air Conditioning Compressor Clutch Plate Remover/Installer For use on GM-Harrison A6 and early R4 automotive air conditioning compressors Removes the clutch for access to the shaft seal and re-installs it by simply inverting the nut and main bearing Rugged all metal construction for durability and long term performance Will not damage compressor components