Spool Performance 8HP70, 8HP75, 8HP76 Stage 2 Upgraded Transmission DIY Parts Kit
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Product Details
After over a year of thorough testing, Spool Performance is proud to present our Stage 2 Transmission Kits for the 8HP70, 8HP75, and 8HP76 series transmissions. Engineered to exceed the limits of factory-standard components, these kits offer an exceptional torque capacity of over 1200 ft-lbs. This comprehensive upgrade includes advanced friction materials developed in-house, billet 7075 heat-treated and hard-anodized customized C and E hubs, bespoke pressure plates, apply plates, and increased clutch counts for every clutch pack.
Advanced Hub Design
The C and E clutch hubs in the 8HP series are critical points of failure due to their OEM construction from flimsy, cast A380 aluminum. These hubs are prone to shearing or breaking of the lock splines, and the steel clutch plates can dig into the splines, causing hang-ups and burnouts.
Key Upgrades:
- Material: Re-designed using 7075 series aluminum, one of the strongest grades of billet aluminum.
- Treatment: Heat-treated and hard-anodized to enhance strength and surface hardness, providing increased resistance to shear forces and wear from steel disc engagement.
- Design Enhancements: Improved clutch cooling paths, oil evacuation, and increased clutch pack area for optimal performance.
Superior Friction Materials
Our FX-RT frictions, developed in-house, provide much higher friction coefficients than OEM materials. These frictions ensure performance and durability without decreasing engagement and overall drivability. This development is the product of over a year of continuous testing and refinement across multiple platforms.
Ease of Installation
Rebuilding a transmission can be intimidating, so we’ve designed our kits for seamless installation. All clutch packs are pre-clearanced and ready to drop in with custom pressure and apply plates, eliminating guesswork for the installer. The kit includes additional steel plates for builders who prefer custom clearance settings.
Features:
- Upgraded Friction Materials: In-house developed for higher friction coefficients and enhanced durability.
- Billet 7075 Hubs: Heat-treated and hard-anodized for superior strength and wear resistance.
- Custom Pressure and Apply Plates: Ensure optimal performance and ease of installation.
- Increased Clutch Counts: Enhanced torque handling capacity for every clutch pack.
- Pre-clearanced Clutch Packs: Ready to install with no need for additional adjustments.
- Extra Steel Plates: Provided for custom clearance settings.
What’s Included
- 7075 Custom Billet E Hub
- E Hub Center Bushing
- 7075 Custom Billet C Hub
- A Clutch Friction & Steels
- A Clutch Pressure Plate
- A Clutch Apply Plate
- B Clutch Friction & Steels
- B Clutch Pressure Plate
- B Clutch Apply Plate
- C Clutch Friction & Steels
- C Clutch Pressure Plate
- D Clutch Friction & Steels
- D Clutch Pressure Plate
- D Clutch Apply Plate
- E Clutch Friction & Steels
- E Clutch Pressure Plate
- Complete Seal kit including Gaskets and O-rings
Prop 65 Warning
