NHTSA ID Number: 11016879
Manufacturer Communication Number: 21-009-25 REV. B
TSB/Document Date: 2025-04-08
Summary
"850RE D Clutch Repair **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must have at least 11,265 km (7,000 mi.) and exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● P0733-00 - Gear 3 Shift Incorrect Ratio. ● P1DA8-00 - Incorrect Gear Ratio Clutch A B or D Defective. ● P1D92-00 - Incorrect Gear Ratio - Clutch 4 Defective. Customers may also comment on one or more of the following: ● Transmission slips when shifting. ● Vehicle will not move in reverse. ● Vehicle will not shift higher than third gear This bulletin involves replacing the D clutch."
Technical Service Bulletin (TSB)
850RE D Clutch Repair
REFERENCE:
TSB: 21-009-25 REV. B
GROUP: 21 - Transmission and Transfer
Case
Date:
April 5, 2025
VEHICLES
AFFECTED:
2022 (WS) Wagoneer / Grand Wagoneer
2020 - 2025 (WD) Dodge
Durango
2020 - 2023 (LD) Dodge Charger
2020 - 2023 (LA) Dodge Challenger
2020 - 2025 (DT) RAM 1500 Pickup
2021 - 2024 (DS) RAM 1500 Classic
2021 - 2024 (DX) RAM Truck (Mexico)
2020 - 2022 (WK) Jeep Grand Cherokee
2021 - 2024 (WL) Jeep Grand Cherokee / Grand Cherokee L
2020 - 2025 (JT) Jeep Gladiator
2020 - 2025 (JL) Jeep Wrangler
2020 - 2023 (LX) Chrysler 300
This bulletin applies to vehicles equipped with an Eight-Speed Auto
850RE Transmission (Sales Code DFT).
REVISION: 21-009-25 REV. A
MARKET APPLICABILITY:
NA
MEA
SA
IAP
EE
CH
CUSTOMER
SYMPTOM:
**Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must have
at least 11,265 km (7,000 mi.) and exhibit/set one or more of the following Diagnostic Trouble Codes
(DTCs):**
● P0733-00 - Gear 3 Shift Incorrect Ratio.
● P1DA8-00 - Incorrect Gear Ratio Clutch A B or D Defective.
● P1D92-00 - Incorrect Gear Ratio - Clutch 4 Defective.
Customers may also comment on one or more of the following:
● Transmission slips when shifting.
● Vehicle will not move in reverse.
● Vehicle will not shift higher than third gear.
CAUSE:
D Clutch repair
This bulletin supersedes Technical Service Bulletin (TSB) 21-009-25 REV. A, date of issue February 01,
2025, which should be removed from your files. All revisions are highlighted with **asterisks** and
include an updated Customer Symptom statement and Repair Procedure step.
REPAIR SUMMARY:
This bulletin involves replacing the D clutch.
J21 FSAR-TSB-5388
-2-
CLAIMS DATA:
Labor Operation No:
21-00-64-90
21-00-64-91
21-00-64-92
21-00-64-93
21-00-64-94
21-00-64-95
Failure Code
Labor Description
D Clutch - Inspect and
Replace 2020-2025 DT,
2021-2024 DX / DS
(3 - Highly Skilled)
D Clutch - Inspect and
Replace 2020-2025 WD,
2020-2022 WK
(3 - Highly Skilled)
D Clutch - Inspect and
Replace 2020-2023 LA /
LD / LX
(3 - Highly Skilled)
D Clutch - Inspect and
Replace 2020-2025 JL /
JT
(3 - Highly Skilled)
D Clutch - Inspect and
Replace 2021-2024 WL
(3 - Highly Skilled)
D Clutch - Inspect and
Replace 2022 WS
(3 - Highly Skilled)
ZZ
Skill Category
2 - Transmission and
Transfer Case
Labor Time
9.7 Hrs.
2 - Transmission and
Transfer Case
7.9 Hrs.
2 - Transmission and
Transfer Case
6.7 Hrs.
2 - Transmission and
Transfer Case
6.4 Hrs.
2 - Transmission and
Transfer Case
7.3 Hrs.
2 - Transmission and
Transfer Case
5.4 Hrs.
Service Action
RELATED LOPS:
Labor Operation No:
21-00-64-60
21-00-64-64
21-00-64-66
Labor Description
Skid Plate 2020-2025 DT, 2021-2024
DS / DX, 2020-2025
WD, 2020-2022 WK ,
2020-2025 JL / JT,
2021-2024 WL, 2022 WS
(3 - Highly Skilled)
MGU Equipped 2020-2025 DT, 2020-2025
JL / JT
(3 - Highly Skilled)
4x4/AWD Equipped 2020-2025 DT, 2021-2024
DS / DX, 2020-2025
WD, 2020-2022 WK,
2021-2024 WL, 2022 WS
WL / WS
Skill Category
2 - Transmission and
Transfer Case
Labor Time
0.4 Hrs. (DT DS/DX Only)
0.2 Hrs.
(WL/WS/WD/WK/JL/JT
Only)
2 - Transmission and
Transfer Case
0.3 Hrs. (DT Only)
1.2 Hrs. (JL/JT Only)
2 - Transmission and
Transfer Case
0.6 Hrs. (DT/DS/DX Only)
0.9 Hrs. (LD, LX Only)
1.0 Hrs. (WD/WK,
WL/DS/DX Only)
1.2 Hrs. (LA Only)
-3Labor Operation No:
21-00-00-51
J21 FSAR-TSB-5388
Labor Description
Skill Category
(3 - Highly Skilled)
2 - Transmission and
Adaptation Procedure 2020-2025 DT, 2021-2024 Transfer Case
DX / DS, 2020-2025
WD, 2020-2022 WK,
2020-2023 LA / LD /
LX, 2020-2025 JL / JT,
2021-2024 WL, 2022 WS
(2 - Skilled)
Labor Time
1.0 Hrs.
SPARE PARTS:
Qty
1 (AR)
Part No.
68676890AB
Description
Shaft Kit, Output
1 (AR)
68676891AB
Shaft Kit, Output
1 (AR)
68676887AB
Shaft Kit, Output
1 (AR)
68239499AD
Shaft Kit, Output
1 (AR)
68676892AB
Shaft Kit, Output
1 (AR)
68676894AB
Shaft Kit, Output
1 (AR)
68676893AB
Shaft Kit, Output
10 (AR)
68218925AB
Notes
D Clutch Repair Kit (4x4
JL, JT, WD, WK)
D Clutch Repair Kit (4x4
WL)
D Clutch Repair Kit (4x4
DS, DT, DX, WS)
D Clutch Repair Kit (AWD
LA, LD, LX)
D Clutch Repair Kit (RWD
LA, LD, LX)
D Clutch Repair Kit (RWD
WD, WK, WL)
D Clutch Repair Kit (RWD
DS, DT, DX, WS)
Automatic Transmission
Fluid
DIAGNOSIS:
If the customer describes the symptom/condition above, perform the repair procedure.
SPECIAL TOOLS/EQUIPMENT:
Description
Guide Sleeve
Press Fixture
Bearing/Gear
Rings, Support
Installer, Seal
Ref. No.
10377
8925-3
1130
10378
9677
Notes
J21 FSAR-TSB-5388
-4-
REPAIR PROCEDURE:
CAUTION!
The Transmission Control Module (TCM), or Transmission Control Module Assembly (TCMA) is
extremely sensitive to Electrostatic Discharge (ESD). Always use a ground strap and follow the ESD
guidelines in Electrostatic Discharge Sensitive Devices. Failure to follow these instructions may result
in damage to the TCM/TCMA.
CAUTION!
If the transmission is being reconditioned (clutch/seal replacement) or replaced, it is necessary
to perform the TCM Adaptation Procedure. Refer to the detailed service procedures available in
DealerCONNECT/Service Library under: Service Info>08 - Electrical/8E - Electronic Control Modules/
Module, Transmission Control/ Module Programming.
NOTE: Tag all clutch pack assemblies as they are removed for reassembly identification.
Fig. 1
Fluid Note
1. **Are DTCs P0733, P1DA8 or P1D92 present and the vehicle have at least 1,265 km (7,000 mi.)?**
● YES >>> Proceed to Step 2.
● NO >>> The bulletin does not apply.
2. Remove the torque converter Fig. 2.
Fig. 2
Torque Converter
1 - Torque Converter
-5-
J21 FSAR-TSB-5388
3. If equipped with 4WD, remove the transmission housing extension bolts and remove the extension housing
Fig. 3.
Fig. 3
Extension Housing
1 - Extension Housing Bolts
2 - Extension Housing
4. Remove the transmission output shaft seal Fig. 4.
Fig. 4
Transmission Output Shaft Seal
1 - Transmission Output Shaft Seal
J21 FSAR-TSB-5388
-6-
5. Remove the output shaft snap ring Fig. 5.
NOTE: For 4X4 only.
Fig. 5
Output Shaft Snap Ring
1 - Output Shaft Snap Ring
6. Remove the output shaft flange locknut staking Fig. 6.
NOTE: 2WD only.
Fig. 6
Output Shaft
1 - Output Shaft Flange Locknut Staking
2 - Output Shaft Flange
3 - Output Shaft Flange
7. Using a flange holder, remove the output shaft flange nut.
8. Remove the output shaft flange and inspect the output shaft flange sealing surface for damage, replace as
needed.
-7-
J21 FSAR-TSB-5388
9. Remove the 13 transmission oil pan bolts Fig. 7.
NOTE: Inspect the gasket for reuse. If the seal is cut or torn, replace the gasket.
Fig. 7
Transmission Oil Pan
1 - Transmission Oil Pan Bolts
2 - Transmission Oil Pan
10. Carefully remove the transmission oil pan and gasket.
11. If equipped, disconnect the Hydraulic Impulse Oil Storage (H.I.S) connector Fig. 8.
Fig. 8
Hydraulic Impulse Oil Storage
1 - Hydraulic Impulse Oil Storage (H.I.S) Connector
2 - Hydraulic Impulse Oil Storage (H.I.S) Bolts
12. If equipped, remove bolts and the H.I.S accumulator.
J21 FSAR-TSB-5388
-8-
13. Remove the valve body assembly end retainer bolts Fig. 9.
Fig. 9
Valve Body Assembly
1 - Valve Body Assembly End Retainer Bolt
2 - Valve Body Assembly End Retainer Bolt
3 - Electrical Connector Lock
14. Lift the electrical connector lock to release the internal harness end from inside the transmission for valve
body assembly removal.
15. Remove the Output Speed Sensor (OSS) bolt and gently lift the OSS out from the case Fig. 10.
Fig. 10
Output Speed Sensor
1 - Output Speed Sensor Bolt
-9-
J21 FSAR-TSB-5388
16. Using Guide Sleeve 10377, carefully pull the electrical harness insulator straight out from the transmission
case Fig. 11.
Fig. 11
Electrical Harness Insulator
1 - Remover/Installer, Guide Sleeve 10377
2 - Electrical Harness Insulator
17. Remove the valve body assembly bolts in the order shown and remove the valve body Fig. 12.
Fig. 12
Valve Body Assembly
J21 FSAR-TSB-5388
-10-
18. Remove the fluid port from the transmission or valve body assembly (the fluid port may stick in the valve
body upon removal) Fig. 13.
Fig. 13
Fluid Port
1 - Fluid Port
19. Remove the fluid transfer tube and O-rings.
20. Remove the input shaft O-ring using a small pick or equivalent Fig. 14.
Fig. 14
Input Shaft O-Ring
1 - Input Shaft O-ring
-11-
J21 FSAR-TSB-5388
21. Remove and DISCARD the 14 oil pump housing bolts Fig. 15.
NOTE: Remove the input shaft O-ring before the oil pump is removed.
Fig. 15
Oil Pump Housing
1 - Oil Pump Housing Bolts
22. Carefully pry the oil pump housing away from the case using a small flat blade screwdriver or equivalent
through the case opening Fig. 16.
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TSB/Document ID: 21-009-25 REV. B
Replacement Service Bulletin Number:
MFR Communication Date: 2025-04-05
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System: D Clutch Repair
MFR Component Subsystem:
Previous TSB | Next TSB |
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