Technical Service Bulletin (TSB)
Rear Selective Thrust Washer Failure
REFERENCE:

TSB: 21-054-24 REV. A
GROUP: 21 - Transmission and Transfer
Case

Date:

October 27, 2024

REVISION: 21-054-24

VEHICLES
AFFECTED:

2024 (D2) RAM 3500 Pickup
MARKET APPLICABILITY:
2024 (DJ) RAM 2500 Pickup
MEA
NA
This bulletin applies to vehicles equipped with the 6.7L I6 Cummins
SA
IAP
Turbo Diesel Engine (Sales Code ETL) and the 6-Spd Automatic 68RFE
Transmission (Sales Code DG7).
EE
CH

CUSTOMER
SYMPTOM:

Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must
exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
● P0218-00 - Transmission High Temperature Operation Activated.
● P0716-00 - Input Speed Sensor 1 Circuit Performance.
● P0729-00 - Gear 6 Shift Incorrect Ratio.
● P0731-00 - Gear 1 Shift Incorrect Ratio.
● P0732-00 - Gear 2 Shift Incorrect Ratio.
● P0733-00 - Gear 3 Shift Incorrect Ratio.
● P0734-00 - Gear 4 Shift Incorrect Ratio.
● P0735-00 - Gear 5 Shift Incorrect Ratio.
● P0841-00 - Transmission Fluid Pressure Sensor/Switch 1 Circuit Performance.
● P0868-00 - Transmission Fluid Pressure Low.
● P0871-00 - Transmission Fluid Pressure Sensor/Switch "C" Circuit Range/Performance.
● P0876-00 - Transmission Fluid Pressure Sensor/Switch "D" Circuit Range/Performance.
● P0944-00 - Loss Of Hydraulic Pump Prime.
Customers may also comment on one or more of the following:
● Hard shifting into gear.
● Vehicle enters into limp home mode.

CAUSE:

Rear selective thrust bearing cracking

This bulletin supersedes Technical Service Bulletin (TSB) 21-054-24, date of issue October 26, 2024,
which should be removed from your files. All revisions are highlighted with **asterisks** and include
an updated Repair Summary section.
This Technical Service Bulletin (TSB) has also been released as a Rapid Service Update (RSU) 24-149,
date of issue October 26, 2024. All applicable RSU VINs have been loaded. To verify this RSU service
action is applicable to the vehicle, use VIP or perform a VIN search in DealerCONNECT/Service Library.
All repairs are reimbursable within the provisions of warranty.

M21 FSAR-TSB-4747

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REPAIR SUMMARY:
This bulletin involves replacing the transmission rear selective thrust plate located between the Number 6
thrust bearing and the reaction sun gear.
**VINs identified as being involved in this campaign are currently live and searchable. Stop Sale is in effect
for the above-identified vehicles.
NOTE: Some of the involved vehicles may be in dealer new vehicle inventory. Involved vehicles can be
determined by using the VIP inquiry process.**
CLAIMS DATA:

Labor Operation No:
21-00-19-90

Failure Code

Labor Description
Bearing, Transmission
Thrust - Replace
(3 - Highly Skilled)
ZZ

Skill Category
21 - Transmission

Labor Time
4.0 Hrs.

Service Action

RELATED LOPS:

Labor Operation No:
21-00-19-67
21-00-19-68

Labor Description
4x4 Equipped
(3 - Highly Skilled)
Skid Plate Equipped
(3 - Highly Skilled)

Skill Category
21 - Transmission

Labor Time
1.0 Hrs.

21 - Transmission

0.1 Hrs.

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M21 FSAR-TSB-4747

SPARE PARTS:
NOTE: To quickly search for a VIN, use “CTRL+F” to open the search bar. Enter the last 8 of the VIN to
locate within the list.
Qty
1 (AR)

Part No.
4799813AC

Description
Plate, Planetary

Notes
Thrust Washer Thickness
2.78 mm
Please refer to the VIN
List Table to order the
correct part.
Thrust Washer Thickness
2.86 mm
Please refer to the VIN
List Table to order the
correct part.
Thrust Washer Thickness
3.08 mm
Please refer to the VIN
List Table to order the
correct part.
Thrust Washer Thickness
3.23 mm
Please refer to the VIN
List Table to order the
correct part.
Thrust Washer Thickness
3.38 mm
Please refer to the VIN
List Table to order the
correct part.

1 (AR)

04799814AC

Plate, Planetary

1 (AR)

04799843AC

Plate, Planetary

1 (AR)

04799816AC

Plate, Planetary

1 (AR)

04799817AC

Plate, Planetary

6
1
18

06506497AA
68433227AB
68218057AC

1
15

68425659AA
06102403AA

1
1
1

04799964AD
52119645AA
06504548

Bolt, Torque Convertor
Front Driveshaft Boot Kit
Fluid, Auto Transmission
ATF+4, Quart, Standard
MS 9602-F
Gasket, Oil Pan
Bolt, Hex flange Head M6
x 1 x 14
Seal, Sump Filter
Cover, Oil Pump
With Seals and O-ring.
Screw, M6 x 1 x 30
Manual Shift Lever Bolt.

M21 FSAR-TSB-4747

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DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in DealerCONNECT/
Service Library, verify all related systems are functioning as designed. If DTCs or symptom conditions, other
than the ones listed above are present, record the issues on the repair order and repair as necessary before
proceeding further with this bulletin.
If a customer’s VIN is listed in VIP or your RSU VIN list, perform the repair. If any vehicle not on the VIN list
exhibits any of the symptom listed above in the customer symptom section, perform the Repair Procedure.
SPECIAL TOOLS/EQUIPMENT:

Description
Support Stand Tool
End-Play Tool Set
Adapter
Dial Indicator
Alignment Plate
Output Shaft End-Play Socket
End-Play Tool Set Handle
wiTECH or Equivalent

Ref. No.
8257
8266-17
8216
C-3339A
10065
8266-20
8266B
-

Notes

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M21 FSAR-TSB-4747

REPAIR PROCEDURE:
CAUTION!
Tag all snap rings, thrust washer, washers, shims, spacers and thrust bearings, etc. during
disassembly for quick identification and assembly. Failure to follow these instructions will cause
damage and transmission failure.
NOTE: During assembly, apply trans jell or petroleum jelly to all slide portions, rolling contacts
surfaces, thrust surfaces etc. to prevent burnout during initial operation. Lubricate O-rings
and O-ring seals with MOPAR® ATF+4. Soak all friction disks in MOPAR® ATF+4 for at least
two hours before assembly of clutch packs.
68RFE Clutch Orientation Fig. 1:

Fig. 1
68RFE Clutch Orientation
1 - U/D Clutch
2 - O/D Clutch
3 - Reverse Clutch
4 - 4C Clutch
5 - 2C Clutch
6 - L/R Clutch

1. Is the vehicle on the RSU VIN list?
● YES >>> Proceed to Step 2.
● NO>>> This RSU bulletin does not apply. Normal diagnosis should be performed.
2. Remove the torque converter from the transmission. Refer to the detailed service procedures available in
DealerCONNECT/Service Library under: Service Info> 21 - Transmission and Transfer Case / Automatic 68RFE / Torque Converter / Removal.

M21 FSAR-TSB-4747

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3. Remove the manual shift lever from the transmission and DISCARD the manual shift lever bolt Fig. 2.

Fig. 2
Manual Shift Lever
1 - Manual Shift Lever

4. Remove the input speed sensor from the transmission case Fig. 3. Refer to the detailed service
procedures available in DealerCONNECT/Service Library under: Service Info> 21 - Transmission and
Transfer Case / Automatic - 68RFE / Sensor, Speed, Input / Removal.

Fig. 3
Remove Input Sensor
1 - Output Speed Sensor
2 - Line Pressure Sensor
3 - Input Speed Sensor

NOTE: Do not remove the Output Speed Sensor or the Line Pressure Sensor to perform this repair.

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M21 FSAR-TSB-4747

5. Install Support Stand 8257 onto the transmission case Fig. 4.

Fig. 4
Support Stand Tool 8257
1 - Support Stand Tool 8257

6. Using Adapter 8266-17 from End-Play Tool set 8266B and Dial Indicator C-339A , measure and record the
input shaft end-play Fig. 5.

Fig. 5
Measure Input Shaft End Play
1 - End-Play Tool Set 8266-17
2 - Adapter 8216 With Dial Indicator C-3339A

NOTE: When measuring the input shaft end-play, two "stops" will be felt. When the input shaft
is pushed inward and the dial indicator zeroed, the first "stop" felt when the input shaft
is pulled outward is the movement of the input shaft in the input clutch housing hub.
This value should not be included in the end-play measured value and therefore must be
recorded and subtracted from the dial indicator reading.
NOTE: Adapter 8266-17 will fit loosely onto the input shaft, this should not effect the performance
of the adapter.

M21 FSAR-TSB-4747

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7. Remove the bolts holding the transmission extension/adapter housing to the transmission case.
8. Remove the extension/adapter housing from the transmission case.
9. Using Alignment Plate 10065, Output Shaft End-Play Socket 8266-20, handle from End-Play Tool Set
8266B and Dial Indicator C-339A, measure and record the output shaft end-play Fig. 6.

Fig. 6
Measure Output Shaft End Play
1 - Tool 10065
2 - Tool 8266-20
3 - Tool C-3339A

10. Remove the bolts holding the transmission oil pan to the transmission case.
11. Remove the transmission oil pan from the transmission case and DISCARD the oil pan gasket.
12. Remove the valve body from the transmission case. Refer to the detailed service procedures available
in DealerCONNECT/Service Library under: Service Info> 21 - Transmission and Transfer Case/Automatic/
Valve Body/Removal and Installation.

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M21 FSAR-TSB-4747

13. Remove the outer snap-ring securing the transmission front cover into the transmission case Fig. 7.

Fig. 7
Front Cover
1 - Front Cover
2 - O - Ring
3 - Snap Ring
4 - Front Cover Seal

14. Reaching through a case opening in the valve body area with a long blunted Tool, remove and DISCARD
the transmission front cover from the transmission case Fig. 7.

M21 FSAR-TSB-4747

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15. Remove the bolts holding the oil pump into the transmission case Fig. 8.

Fig. 8
Remove Oil Pump
1 - Oil Pump To Case Bolt
2 - Oil Pump

16. Remove the oil pump. Hold inward on the input shaft to prevent pulling the input clutch assembly with the
oil pump Fig. 8.
CAUTION!
If the input shaft is not held during oil pump removal, the input clutch assembly will attempt
to move forward with the oil pump and the numbers 2, 3, or 4 bearings inside the input clutch
assembly may become dislodged.

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M21 FSAR-TSB-4747

17. Remove the number one thrust bearing from the input clutch assembly Fig. 9.

Fig. 9
68RFE Cross Sectional
1 - Thrust Bearing No. 1

8 - Thrust Bearing No. 8

2 - Thrust Bearing No. 2

9 - Thrust Bearing No. 9

3 - Thrust Bearing No. 3

10 - Thrust Bearing No. 10

4 - Thrust Bearing No. 4

11 - Thrust Bearing No. 11

5 - Thrust Bearing No. 5

12 - Thrust Bearing No. 12

6 - Thrust Bearing No. 6

13 - Output Shaft Bearing

18. Remove the input clutch assembly from the transmission case Fig. 10.

Fig. 10
Input Clutch Assembly
1 - Thrust Bearing Number 5
2 - Thrust Plate (select)
3 - Input Clutch Assembly
4 - Thrust Bearing Number 1

19. Remove the number 5 thrust bearing and selective thrust plate from the input clutch assembly, or the 4C
clutch retainer/bulkhead Fig. 10.

M21 FSAR-TSB-4747

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20. Remove the 4C clutch retainer/bulkhead tapered snap-ring from the transmission case Fig. 11.

Fig. 11
4C Clutch Retainer/Bulkhead
1 - Snap-ring
2 - 2C/4C Clutch Retainer/bulkhead

21. Remove the 4C clutch retainer/bulkhead from the transmission case Fig. 11.
22. Remove the front 2C clutch pack snap-ring from the transmission case Fig. 12.

Fig. 12
2C Clutch Pack
1 - Snap-Ring

3 - Disc

2 - Plate

4 - Reaction Plate

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M21 FSAR-TSB-4747

23. Remove the 2C clutch pack from the transmission case Fig. 12.
24. Remove and DISCARD the rear selective thrust plate from the 4C clutch hub Fig. 13.

Fig. 13
Reaction Annulus And Carrier
1 - Thrust Bearing Number 6
2 - Output End Play Thrust Plate (selective)
3 - 4c Clutch Hub / Reaction Sun Gear
4 - Thrust Bearing Number 8
5 - Reaction Planetary Carrier
6 - Thrust Bearing Number 9

25. Install the 2C reaction plate Fig. 14.

Fig. 14
2C Clutch Pack
1 - Snap-Ring
2 - Plate
3 - Disc
4 - Reaction Plate

26. Install the 2C clutch pack into the transmission case Fig. 14.
27. Install the flat 2C / 4C clutch snap-ring into the transmission case Fig. 14.

M21 FSAR-TSB-4747

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28. Install the reaction planetary gear set.
29. Install the number 8 thrust bearing into the reaction sun gear with the blue ink stripe against the sun gear
with the inner race facing up Fig. 15.

Fig. 15
Reaction Annulus and Carrier
1 - Thrust Bearing Number 6
2 - Output End Play Thrust Plate (selective)
3 - 4c Clutch Hub / Reaction Sun Gear
4 - Thrust Bearing Number 8
5 - Reaction Planetary Carrier
6 - Thrust Bearing Number 9

30. Install the output shaft selective thrust plate onto the 4C clutch hub with the oil grooves facing the hub and
the lugs and notches aligned as shown Fig. 16.

Fig. 16
Thrust Plate Alignment
1 - Locating Lugs
2 - Thrust Plate

NOTE: The angular spacing between the lugs/notches is not uniform.

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M21 FSAR-TSB-4747

31. Install the number 6 thrust bearing against the NEW output shaft selective thrust plate with the flat side
against the thrust plate and the raised tabs on the inner race facing the front of the transmission Fig. 17.

Fig. 17
Reaction Annulus And Carrier
1 - Thrust Bearing Number 6
2 - Output End Play Thrust Plate (Selective)
3 - 4c Clutch Hub / Reaction Sun Gear
4 - Thrust Bearing Number 8
5 - Reaction Planetary Carrier
6 - Thrust Bearing Number 9

32. Install the install the 4C clutch / reaction sun gear into the reaction planetary gear set Fig. 17.
33. Install the 2C / 4C retainer/bulkhead into the transmission case Fig. 18. Make sure that the oil feed holes
are pointing toward the valve body area. Rotate the 4C clutch hub during the installation of the 4C retainer/