Dakota Quad Cab 4WD V6-3.9L VIN X (2001)
Band: Description and Operation
42RE (A-500) 4 Speed
DESCRIPTION
KICKDOWN (FRONT) BAND
The kickdown, or "front", band (Fig. 63) holds the common sun gear of the planetary gear sets. The front (kickdown) band is made of steel, and faced
on its inner circumference with a friction-type lining. One end of the band is anchored to the transmission case, and the other is acted on with a
pushing force by a servo piston. The front band is a single-wrap design (the band does not completely encompass/ wrap the drum that it holds).
LOW/REVERSE (REAR) BAND
The low/reverse band, or "rear", band (Fig. 64) is similar in appearance and operation to the front band. The rear band is slightly different in that it
does not use a link bar, but is acted directly on by the apply lever. This is referred to as a double-wrap band design (the drum is completely
encompassed/ wrapped by the band). The double-wrap band provides a greater holding power in comparison to the single-wrap design.
OPERATION
KICKDOWN (FRONT) BAND
The kickdown band holds the common sun gear of the planetary gear sets by applying and holding the front clutch retainer, which is splined to the sun
gear driving shell, and in turn splined directly to the sun gear. The application of the band by the servo is typically done by an apply lever and link bar.
LOW/REVERSE (REAR) BAND
The rear band holds the rear planet carrier stationary by being mounted around and applied to the low/reverse drum.
