Full Allison Transmission Conversion Kit Stage 1

Features

• Complete Allison 6-speed automatic conversion for 2019–2024 RAM 2500/3500 2WD trucks with 6.7L Cummins

• Stage 1 kit includes ATS-built Allison transmission and deep aluminum pan

• Exclusive TRANSLator module ensures plug-and-play compatibility with factory ECM, TCM, and BCM

• Patent-pending cast bellhousing mates Allison to Cummins with no fabrication or adapter plates needed

• Maintains full OEM functionality: tow/haul mode, push-button start, electronic range select, and more

• Built for drivers who demand long-haul durability and daily drivability

• 5-Year/500,000 Mile Warranty

Performance Overview

The ATS Stage 1 Full Allison Conversion Kit provides the ultimate transmission upgrade for RAM owners looking to replace their unreliable AS69RC. By integrating the legendary Allison 1000 6-speed automatic with ATS Diesel’s TRANSLator communication module, this kit delivers unmatched durability, intelligent shifting, and full OEM feature retention.

Unlike the stock Dodge transmission—which is prone to failure under heavy loads or performance tuning—the Allison 1000 is built with larger shafts, clutch packs, and gearsets that can easily manage the torque of the 6.7L Cummins. Whether you're towing, off-roading, or daily driving, this conversion unlocks smoother shifts, increased reliability, and reduced maintenance.

What’s Included

• ATS-Built Allison 1000 6-Speed Transmission

• Cast Aluminum Cummins-to-Allison Bellhousing

• Cast Extension Housing

• ATS Deep Transmission Oil Pan

• TRANSLator Control Module with Plug-and-Play Wiring Harness

• Transfer Case Adapter Kit

• Shift Linkage Kit

• Dipstick Tube

• Cooler Adapter Lines and Fittings

• Transmission Mount

• Billet Five-Star Torque Converter

Fitment

Fitment:
2019, 2020, 2021, 2022, 2023, 2024 RAM 2500 / 3500 6.7L Cummins 2WD (Replaces AS69RC Transmission)

Warranty

5-Year / 500,000 Mile Warranty
Covers the entire conversion package including transmission, torque converter, and electronic control systems.

Fitment Notes

• Designed specifically for 2WD trucks equipped with the AS69RC

• Minimal driveshaft modifications may be required (kit includes all needed hardware)

• Tuning may be needed to re-flash engine ECM to AS69RC or AS68RC calibration

• Recommended for both stock and tuned Cummins engines