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Home >> Ford >> 2002 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2914 (Automatic Transmission - 6R140 (TORQSHIFT(R)6)) -- F250-F550 Super Duty) >> Description And Operation >> System Components >> Hydraulic System Schematic >> Low/Reverse (1,R) Clutch and Low One-Way Clutch (OWC)

Low/Reverse (1,R) Clutch and Low One-Way Clutch (OWC)

WARNING: This page is about a different car, the 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

The low/reverse (1,R) clutch holds the rear planetary carrier stationary to the transmission case. The low/reverse (1,R) clutch is applied in PARK, REVERSE, NEUTRAL, manual 1st gear and DRIVE 1st gear, below 8 kph (5 mph). The low OWC  is a brake clutch that also holds the rear planetary carrier in one direction and allows it to freewheel in the opposite direction eliminating engine braking in 1st gear when the transmission is in drive. The low OWC  is also a pressure plate for the low/reverse (1,R) clutch.

Fig 1: Exploded View Of Low/Reverse (1,R) Clutch And Low One-Way Clutch (OWC)
G07482704Courtesy of FORD MOTOR CO.
LOW/REVERSE (1,R) CLUTCH AND LOW ONE-WAY CLUTCH (OWC) PARTS REFERENCE CHART

Item Description
1 Low/One-Way Clutch (OWC)
2 Rear planetary assembly carrier
3 Low/reverse (1,R) clutch assembly
4 Low/reverse (1,R) clutch pressure plate
5 Low/reverse (1,R) clutch piston return spring
6 Low/reverse (1,R) clutch piston
7 Low/reverse (1,R) clutch cylinder
8 Transmission case