8-Speed Automatic Transmission Assembly for 2022-2024 Ram 1500

A quick look at your own vehicle makes sure the right transmission shows up:

• Check the 8th digit of the VIN to confirm the truck has the 5.7L Hemi V8 with the eTorque mild-hybrid system (replaces standard alternator with a motor-generator unit).
• Confirm the truck is a 4x4 model with a transfer case.
• Confirm the truck has 6-lug wheels (new style DT body, not 5-lug Classic DS body).
• Locate the white barcode sticker on the driver's side of the transmission case and verify the original part number matches Mopar P/N 68550344AA.

What the install really takes — plan and budget with confidence:

Special tools this job needs:

• Heavy-duty transmission jack
• OBD2 scan tool with programming capabilities (e.g., AlfaOBD, WiTECH 2.0, or high-end Autel)
• Secure Gateway Module (SGW) bypass cable
• Fluid transfer pump
• Infrared thermometer or scan tool to monitor transmission fluid temperature
• Extensive socket set with various extensions and swivels
• Torque wrench

Budget for these consumables at install:

• ZF Lifeguard 8 or Mopar 8&9 Speed ATF (Part# 68218925AB) - purchase 10 quarts
• New transmission pan assembly with integrated filter (Mopar P/N 68225344AA, Dorman 265-850F, or equivalent) and gasket
• Front torque converter seal (pump input shaft seal)
• Rear transfer case adapter seal
• Professional aerosol transmission cooler flush (e.g., Lubegard Kooler Kleen)

What your vehicle’s computers will need after the swap:

What’s involved: VIN-specific programming and TCM adaptive relearn (Quick Learn / Static Adaptation)

The TCM is integrated into the internal valve body and is VIN-locked to the donor vehicle. If installed without programming, the vehicle will not start or will enter limp-in mode. A dealer-level tool (wiTECH 2.0) or capable aftermarket tool (like AlfaOBD) paired with an SGW bypass cable is required to write the VIN and perform the clutch adaptive relearn.

Pro tips for a smooth first start-up — hand them to whoever does the install:

• Torque Converter Seating: Must drop/click into place three distinct times. If not fully seated, tightening the bellhousing bolts will crack the internal oil pump, destroying the transmission instantly.
• Thermal Bypass Valve (TBV) Inspection: Inspect or replace the TBV assembly on the side of the case, or install an aftermarket thermal bypass delete kit to prevent overheating.
• Fluid Fill Temperature Window: No dipstick. Must fill through the side plug while the engine is running, the truck is level, and fluid temperature is strictly between 30°C and 50°C (86°F to 122°F).
• SGW Bypass Cable: Must plug an SGW bypass cable into the harness under the dashboard on 2018+ models to allow programming.
• Dowel Pins: Ensure alignment dowel pins are present on the engine block before mating the transmission to prevent vibration and damage.

Easy to get right once you know them:

• Ordering for a Non-eTorque Truck: Buying an eTorque transmission (DFR) for a non-eTorque truck (DFV) or vice versa. They use different torque converters and TCM software calibrations.
• Using Cheap Aftermarket Oil Pans: Cheap aftermarket aluminum pans can be too shallow internally, putting physical pressure on the internal parking pawl mechanism and preventing the truck from shifting into Park.
• Skipping the Cooler Flush: Failing to flush the cooler lines will wash metallic debris from the previous failure into the new valve body, ruining the solenoids.
• Failing to Program the VIN: Assuming the truck can be driven to a shop for programming. The security system will prevent starting or lock the transmission in Park until programmed.
• Using the Wrong Fluid: Using generic multi-vehicle ATF instead of Mopar 8&9 Speed ATF or certified ZF Lifeguard 8 equivalent.

Not issues with the units on this page — the manufacturer documented these for every transmission of this family, wherever you buy one. Handy for your installer: