UNDERDRIVE Brake Measurement

Fig 1: Underdrive Brake Discs, Plates, Reaction Plate & Snap-Ring

Courtesy of CHRYSLER GROUP, LLC

When the underdrive brake is replaced, the proper select snap ring (1) must be install to achieve specified end play Refer to SPECIFICATIONS .

1. Install the, discs (3), plates (4), reaction plate (2) and snap-ring (1) in the transaxle housing.
2. Place transaxle housing on a suitable arbor press.
   Fig 2: Special Tool #8621, special tool #10429 & Press

   Courtesy of CHRYSLER GROUP, LLC
3. Place tool (special tool #8621, Compressor, Spring) (1) on the underdrive clutch.
4. Place tool (special tool #10429, Gauge, Force) on compressor tool (2) directly under the arbor press ram.
5. Apply 2.8 kg/cm² (40 psi) of force to compress the underdrive brake.
6. Using a suitable feeler gauge set (3), measure the gap between the underdrive reaction plate and the snap ring (4). Refer to SPECIFICATIONS .
7. If the clearance is not within specification, install a thicker or thinner select snap-ring (4) to adjust the clearance.