These are the same Tremec HD 5-speed manual transmissions used in the 1995 Mustang Cobra "R" models with the 351 5.8L engines.
Ford Racing Tremec 6-Speed Transmission (2.66 1ST Gear/26 Spline)
TRANSMISSION 6-SPEED 2.66 1ST GEAR
TRANSMISSION 6-SPEED
D-Line: Manual Trans