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

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

VEHICLES
AFFECTED:

2024 (D2) RAM 3500 Pickup
2024 (DJ) RAM 2500 Pickup
This bulletin applies to vehicles equipped with the 6.7L I6 Cummins
Turbo Diesel Engine (Sales Code ETL) and a 6-Spd Automatic 68RFE
Transmission (Sales Code DG7).

CUSTOMER
SYMPTOM:

Date:

December 3, 2024

REVISION: 21-054-24 REV. C

MARKET APPLICABILITY:
NA

MEA

SA

IAP

EE

CH

NOTE: This is a proactive RSU Repair Procedure to be performed for all Unsold vehicles not exhibiting
the Diagnostic Trouble Codes (DTCs) or Customer Symptoms below.
Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may
exhibit/set one or more of the following 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 REV. C, date of issue November
16, 2024, which should be removed from your files. This is a complete revision and no asterisks have
been used to highlight revisions.
This Technical Service Bulletin (TSB) has also been released as a Rapid Service Update (RSU) 24-161,
date of issue December 03, 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.

J21 FSAR-RSU-4774

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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 and replacing 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
4.2 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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J21 FSAR-RSU-4774

SPARE PARTS:

Qty
1
1

Part No.
52119771AB
05013092AB

6
8

06508406AA
06506497AA

1
18

68433227AB
68218057AC

1
15

68425659AA
06102403AA

1
1
1

04799964AD
52119645AA
06504548

Description
Gear, Reaction Sun
Plate Package, Planetary
Thrust
Torque Convertor Bolts
Hex Flange Head Locking
Bolt
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
Screw, M6 x 1 x 30

Notes
Rear Selected Thrust
Plate/Shim Package
Front and Rear Driveshaft
Bolts

With Seals and O-ring
Manual Shift Lever Bolt

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, and does not exhibit the symptom/conditions above,
perform the repair. All other vehicles exhibiting the symptom/conditions above, please follow normal diagnostic
and repair procedures.

J21 FSAR-RSU-4774

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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

REPAIR PROCEDURE:
NOTE: The rear transmission end-play must be set as the 4C clutch hub/reaction sun gear is being
replaced in addition to the rear selected thrust plate/shim.
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

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J21 FSAR-RSU-4774

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.
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
Removal - Input Sensor
1 - Output Speed Sensor (Do Not Remove)
2 - Line Pressure Sensor
3 - Input Speed Sensor

J21 FSAR-RSU-4774

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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.

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J21 FSAR-RSU-4774

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.

J21 FSAR-RSU-4774

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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.

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J21 FSAR-RSU-4774

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.

J21 FSAR-RSU-4774

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