Clutches - Coast

Clutches - Coast
The coast clutch is a multi-disc clutch made up of steel and friction plates.
^ The coast clutch is applied with hydraulic pressure and disengaged by return springs and the exhaust of the hydraulic pressure.
^ The coast clutch is housed in the overdrive drum.
^ The coast clutch is applied when in first, third, D, and reverse positions.
^ When applied, the coast clutch locks the overdrive sun gear to the overdrive planetary carrier, thus preventing the one-way clutch from overrunning when the vehicle is coasting.
This allows the use of engine compression to help slow the vehicle and provide engine braking.

One-Way Clutch - Direct
The direct one-way clutch is a sprag-type one-way clutch that is pressed into the center shaft.
^ The direct one-way clutch is driven by the ring gear of the overdrive planetary carrier.
^ The direct one-way clutch holds and drives the outer splines of the center shaft in first, third, fourth and reverse gears.
^ The direct one-way clutch overruns during all coast operations and at all times in 2nd and fifth gear.

One-Way Clutch - Low/Reverse
The low/reverse one-way clutch is a sprag type one-way clutch.
^ The low/reverse one-way clutch holds the low/reverse drum and low/reverse planetary assembly to the case in first and second gear.
^ In all other gears the low/reverse one-way clutch overruns.