ZYN3843 Features: * Rear main seal Installer for ford * Installer is the most accurate way to ensure that the rear main seal is set to the correct depth on the crankshaft * Alternately tightening the bolts the seal is pulled into place quickly easily and with no damage to the rear main seal Includes: * Installer fits over the seal and with the two bolts included attaches to the engine crankshaft Dimensions: * Dimensions: 4.5"" H x 5.3"" W x 5.3"" D