Middle-Rear Planetary Thrust Washer Measurement

This procedure is used to determine the proper thickness for the thrust washer located between the middle-rear planetary assembly and the overdrive clutch assembly.

Fig 1: Rear Cover Spacer/Race

Courtesy of CHRYSLER GROUP, LLC

1. Place the rear cover on a clean work surface, inside up.
2. Place the rear bearing spacer/race (1) and bearing (2) in position on rear cover (3).
   Fig 2: Overdrive Clutch & Rear Cover

   Courtesy of CHRYSLER GROUP, LLC
3. Place the overdrive clutch (1) in position on the rear cover (2).
   Fig 3: Gauge Blocks, Straight Edge, Overdrive Clutch Hub & Rear Cover

   Courtesy of CHRYSLER GROUP, LLC
4. Place two 25 mm (1 in) gauge blocks (1) on opposite sides of the rear cover (5) on the sealing surface.
5. Place a straight edge (2) across the gauge blocks (1).
6. Using a linear caliper, measure the distance from the top of the straight edge (2) to the top of the trust race on the overdrive clutch hub (4).
7. Subtract the thickness of the gauge blocks and straight edge from the overall measurement. This is the distance from the sealing surface to the thrust race of the overdrive clutch hub. Record this as measurement (A)  .
   Fig 4: Gauge Blocks, Straight Edge & Thrust Race

   Courtesy of CHRYSLER GROUP, LLC
8. Place two 25 mm (1 in) gauge blocks (1) on opposite sides of the rear of the transaxle housing (5).
9. Place a straight edge (2) across the gauge blocks (1).
10. Measure (3) the distance from the top of the straight edge (2) to the top of the trust race (4) on the middle-rear planetary gear assembly.
11. Subtract the thickness of the gauge blocks (1) and straight edge (2) from the overall measurement. This is the distance from the sealing surface to the thrust race of the middle-rear planetary gear assembly (4). Record this as measurement (B)  .
    Fig 5: Middle-Rear Planetary Gear Thrust Washer

    Courtesy of CHRYSLER GROUP, LLC
12. Measure (1) the thickness of the middle-rear planetary gear thrust washer (2). Record this as measurement (C)  .

Calculation and Thrust Washer Selection 

Subtract measurement A from B. Record the sum and subtract measurement C. The remaining sum is the clearance between the middle-rear planetary gear and the overdrive clutch. Refer to SPECIFICATIONS .

A thicker or thinner thrust washer can be install to achieve the specified end play. If the service kit does not contain a suitable replacement thrust washer, the rear cover thrust bearing spacer/race can be changed to a suitable thickness.