ATS ZF 8HP7X DIY Upgrade Kit

Upgrade your 8HP7X transmission with proven components from ATS designed for improved torque capacity, clutch durability, and long-term performance—without the downtime or hassle of sending in your transmission. This DIY kit is available in Stage 0, Stage 1, and Stage 2 configurations to match your performance goals and power levels.

Stage 0 – Entry-Level Performance with Increased Clutch Count

Perfect for high-mileage refreshes or mild performance builds, Stage 0 adds clutch capacity across all major clutch packs (A, B, C, D, and E) while maintaining a stock-style setup.

Upgrades include:

• A Clutch (+1 count): 6 Alto fibers, 5 ATS steels, A clutch apply steel
• B Clutch (+1 count): 6 Alto fibers, 5 ATS steels, B clutch apply steel
• C Clutch (+3 count): 9 Alto G3 fibers, 9 ATS steels, ATS pressure plate
• D Clutch (+1 count): 5 Alto fibers, 4 ATS steels, D clutch apply steel, pressure plate
• E Clutch (+2 count): 7 Alto G3 fibers, 6 ATS steels, E clutch apply steel, pressure plate
• Seal package
• Deeper stock-style transmission pan with filter

Stage 1 – Reinforced Hubs and Increased Holding Power

Stage 1 brings billet aluminum components and an optimized clutch stack for customers pushing higher torque.

Upgrades include:

• C Clutch: 9 Alto G3 fibers, 8 ATS steels, apply plate, ATS pressure plate
• E Clutch: 9 Alto G3 fibers, 10 ATS steels, ATS 7075 billet aluminum E hub
• A Clutch: 6 Alto fibers, 5 ATS steels, apply plate, pressure plate
• B Clutch: 6 Alto fibers, 5 ATS steels, ATS apply plate
• D Clutch: 5 Alto fibers, 4 ATS steels, ATS apply plate, ATS pressure plate
• Seal/O-ring package
• Deeper stock-style transmission pan with filter or filter replacement

Stage 2 – Maximum Torque Handling and Billet Componentry

Built for serious power, aggressive builds, and demanding use cases, Stage 2 includes billet C and E hubs and increased clutch count. Ideal for those running upgraded turbos, superchargers, or track-focused setups.

Upgrades include:

• C Clutch: 10 Alto G3 fibers, 9 ATS steels, apply plate, pressure plate, ATS 7075 billet aluminum C hub
• E Clutch: 9 Alto G3 fibers, 10 ATS steels, ATS 7075 billet aluminum E hub
• A Clutch: 6 Alto fibers, 5 ATS steels, apply plate, pressure plate
• B Clutch: 6 Alto fibers, 5 ATS steels, ATS apply plate
• D Clutch: 6 Alto G3 fibers, 5 ATS steels, apply plate, ATS pressure plate
• Seal/O-ring package
• Deeper stock-style transmission pan with filter or replacement filter