This is the transmission front main seal also known as the front pump seal for the automatic gearbox. RR# UG3670 was superseded with RR# RH8535  1945-1955 Silver Wraith, Mk-6, R-type, Sliver...

This is the transmission / gearbox pan gasket. 1945-1955 (All Models fitted with automatic gearbox) 1955-1965 Silver Cloud, S-series, Continental & Phantom V

This is the side sump gasket for automatic transmissions. 1945-1955 (All Models fitted with automatic gearbox) 1955-1965 Silver Cloud, S-series, Continental & Phantom V