ATS 313-905-4368 Allison Transmission Stage 5 Rebuild Kit | 2011-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features

• Complete Stage 5 rebuild kit for Allison 1000 transmissions

• Designed for extreme towing, racing, or high-horsepower builds

• Includes billet input shaft for superior strength

• Performance clutches, steels, and gaskets included

• Enhanced torque handling and improved shift performance

• Precision-machined components for tight tolerances and reliability

• Ideal for trucks with extensive performance modifications

Performance Benefits
The ATS Stage 5 Allison Rebuild Kit is engineered to transform your GM 6.6L Duramax’s transmission into a high-performance powerhouse. With heavy-duty components like a billet input shaft and upgraded clutch packs, this kit is built for serious power delivery and durability. It’s the ultimate solution for high-horsepower applications, aggressive towing, or drag racing, ensuring the transmission won’t be your weak link. Expect smoother, crisper shifts and unmatched reliability even under extreme load and stress.

Fitment
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 GM 6.6L Duramax with Allison 1000 Transmission

Warranty
Covered under ATS Diesel Performance’s standard manufacturer warranty. Refer to ATS for full warranty details and limitations.

Fitment Notes

• Designed specifically for Allison 1000 transmissions behind the 6.6L Duramax

• Recommended for high-performance or heavy-use applications

• Professional installation and tuning are strongly advised for optimal performance