Aisin K1 snap ring on certain 2022 Ram 3500s

Owner reportTransmission

Symptoms: NHTSA investigation PE24009, opened March 27, 2024, says the Office of Defects Investigations had 82 complaints of loss of motive power from a K1 snap ring in the transmission of model year 2022 Ram 3500, 4500, and 5500 vehicles. Of those, 16 describe a complete loss of motive power above 25 mph. When the snap ring comes out, forward gears 1 through 4 no longer work. FCA told ODI that a warning can display and that gear 5 and reverse can remain available. Complaint ODI 11752725, on a 2022 Ram 3500, says the transmission was lost to an Aisin K1 clutch and input-shaft failure.
Likely causes: FCA customer satisfaction notification documents say the transmission in about 5,440 of the listed 2022 Ram 3500, 4500, and 5500 trucks was built with a defective K1 clutch drum snap ring. The notice applies to trucks with an Aisin transmission, sales code DF2 or DF3. It is not a finding about every 2022 Ram 3500.
Common fixes: The customer notice says the dealer replaces the K1 clutch drum snap ring, and that a truck already showing the failure should follow TSB 21-002-23. The notice estimates about 5 hours plus check-in time. ODI's opening resume says this was a technical service bulletin and a customer satisfaction notice, and that the investigation was opened to decide whether the condition is a safety defect.
DIY difficulty: Dealer repair. The customer notice describes a transmission job of about 5 hours. It is not a driveway procedure.
Parts needed: The customer notice names K1 clutch snap ring part 68269568AB. It says to install the snap ring so the ends sit under the drum teeth.
Warranty notes: The customer satisfaction notice says FCA will replace the snap ring free of charge on the VINs it includes. A truck has to be in that VIN list. PE24009 is an investigation record, not itself a recall.

Sources

Owner reportTransmission

Symptoms

NHTSA investigation PE24009, opened March 27, 2024, says the Office of Defects Investigations had 82 complaints of loss of motive power from a K1 snap ring in the transmission of model year 2022 Ram 3500, 4500, and 5500 vehicles. Of those, 16 describe a complete loss of motive power above 25 mph. When the snap ring comes out, forward gears 1 through 4 no longer work. FCA told ODI that a warning can display and that gear 5 and reverse can remain available. Complaint ODI 11752725, on a 2022 Ram 3500, says the transmission was lost to an Aisin K1 clutch and input-shaft failure.

Likely causes

FCA customer satisfaction notification documents say the transmission in about 5,440 of the listed 2022 Ram 3500, 4500, and 5500 trucks was built with a defective K1 clutch drum snap ring. The notice applies to trucks with an Aisin transmission, sales code DF2 or DF3. It is not a finding about every 2022 Ram 3500.

Common fixes

The customer notice says the dealer replaces the K1 clutch drum snap ring, and that a truck already showing the failure should follow TSB 21-002-23. The notice estimates about 5 hours plus check-in time. ODI's opening resume says this was a technical service bulletin and a customer satisfaction notice, and that the investigation was opened to decide whether the condition is a safety defect.

DIY difficulty

Dealer repair. The customer notice describes a transmission job of about 5 hours. It is not a driveway procedure.

Parts needed

The customer notice names K1 clutch snap ring part 68269568AB. It says to install the snap ring so the ends sit under the drum teeth.

Warranty notes

The customer satisfaction notice says FCA will replace the snap ring free of charge on the VINs it includes. A truck has to be in that VIN list. PE24009 is an investigation record, not itself a recall.