Allison Transmission Stage 7 Rebuild Kit

ATS Allison Stage 7 Transmission Rebuild Kit – 313-907-4368

Fits 2011–2019 GM 2500HD / 3500HD with 6.6L Duramax (Allison 1000 Transmission)

When you need the ultimate in transmission performance and reliability, the ATS 313-907-4368 Allison Stage 7 Rebuild Kit delivers. Designed for high-horsepower Duramax applications, this comprehensive rebuild kit transforms your factory Allison 1000 into a race-ready, heavy-duty transmission capable of handling extreme torque, high towing loads, or aggressive tuning.

Whether you're daily driving, towing heavy, or hitting the track, the Stage 7 kit addresses all weak points with billet components, high-friction clutches, and upgraded hydraulics to provide the holding power and durability required in extreme diesel builds.

Key Features:

• Complete high-performance rebuild kit for Allison 1000

• Rated for extreme horsepower and torque applications

• Ideal for racing, sled pulling, or high-performance street use

• Includes upgraded clutches, steels, gaskets, seals, and billet components

• Improves clutch holding capacity and transmission longevity

• Designed to eliminate common Allison failure points under load

• Developed and tested by ATS Diesel for proven performance

Kit Includes:

• Billet input shaft

• Performance clutch packs and steels

• Gasket and seal kit

• Heavy-duty C2 hub

• Billet channel plate

• Pressure regulator valve upgrades

• Pump modifications (if applicable)

• Full assembly instructions

Fitment:
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Chevrolet Silverado 2500HD / 3500HD
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 GMC Sierra 2500HD / 3500HD
With 6.6L Duramax and Allison 1000 transmission

Warranty:
Backed by ATS Diesel’s limited warranty. Professional installation strongly recommended. Contact ATS for full terms.