Forward Drive System

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

The forward drive system consists of the following:

Direct clutch assembly
Forward clutch assembly
Forward ring gear
Forward planetary assembly
Forward/reverse input shell assembly

The direct clutch grobbed cylinder contains the following:

A bonded lip seal piston
A direct clutch return spring
A direct clutch bonded lip seal balance piston

These components are held in place by a snap ring to the direct clutch cylinder.

The direct clutch separator plates and pressure plate are splined to the direct clutch cylinder and held by a snap ring. The direct clutch friction internally splined plates mate with the grobbed splines on the forward clutch cylinder. The forward clutch has a bonded lip seal piston, a beveled design return spring and a bonded lip seal balance piston which are held to the cylinder with a snap ring.

The forward clutch cushion wave spring is splined to the cylinder, as are the separator plates and pressure plate and are held together with a selective snap ring. The forward clutch friction plate is splined to the forward ring gear.

Positioned on the center support hub is a thrust bearing to locate the forward clutch cylinder. There is a thrust bearing positioned between the direct clutch cylinder and the forward clutch cylinder. There is also a thrust bearing positioned between the forward clutch cylinder and the forward ring gear; and between the forward planet and the forward clutch cylinder. There is a thrust washer separating the forward carrier from the forward ring gear hub. The forward planet has a black, phenolic lube dam which snaps onto the rear of the carrier body. Into the center of the input shell is the forward/reverse sun gear positioned by a spacer and held in place by a retaining ring.