Rear Crankshaft Oil Seal Remover and Installer Tool Heavy Duty OEM Alternative to 3164660. Applications include 1989-2016 4BT 3.9L, B Series 5.9L, ISB 5.9L 6.7L and QSB 5.9L 6.7L, also engines PX-6. Use to remove and install seals without a wear sleeve such as 5259499, 3934486 and 3926126. This tool will not remove. There is no tool to remove the wear sleeve.