Ford Three-Speed Automatic Transmission Pan Gasket ID Chart - C3 C4 C5 C6 FMX

This document is a pan gasket identification chart titled "Three-Speed Ford Automatics." It shows the outlines of five different transmission oil pan gaskets, each labeled with the transmission it belongs to, allowing a reader to identify which Ford three-speed automatic transmission is in a vehicle by comparing the shape of the pan or pan gasket. The five gasket outlines shown are: the C6 (a large gasket with a distinctive notched/stepped corner), the FMX Small-Case Cruise-O-Matic (a rectangular gasket with rounded corners), the Medium-Case Cruise-O-Matic (a rectangular gasket), the C4/C5 (a roughly square gasket, with the same pan shape shared by both transmissions), and the C3 (a square gasket with a small protrusion on one side). Each outline includes the approximate bolt hole locations around the perimeter of the gasket. A reader can use this chart to visually match a transmission pan removed from a Ford vehicle to determine whether it is a C3, C4, C5, C6, FMX, or Cruise-O-Matic three-speed automatic transmission. The document contains no year ranges, part numbers, torque specifications, or other text beyond the transmission identification labels.