8HP70 8HP75 8HP76 Billet Main Shaft

Billet Main Shaft for the ZF 8HP70, 8HP75, and 8HP76 transmissions is engineered for high performance and extreme duty applications. Precision machined from premium 300M alloy steel, this shaft is heat-treated and hardened to deliver exceptional strength, durability, and resistance to torsional fatigue. Designed as an upgraded replacement for the factory component, this billet main shaft features modified geometry to handle increased power levels and aggressive driving conditions commonly seen in high-horsepower street and race builds. Ideal for performance enthusiasts and professional builders alike, this component provides the reliability and confidence needed when pushing the limits of the 8HP platform. Key Features: Manufactured from high-strength 300M billet steel Heat-treated and hardened for maximum durability Upgraded design to support high horsepower and torque loads Direct fit for ZF 8HP70, 8HP75, and 8HP76 transmissions Engineered for street, track, and motorsport applications 8HP70 Applications: Alpina B3 [F30 / F31] Alpina B3 [G20 / G21] Alpina D3 [F30 / F31] Alpina D3 [G20 / G21] Alpina B4 [F32 / F33] Alpina D4 [F32 / F33] Alpina XD4 [G02] BMW F30 / F31 330d / 335d BMW F32 430d / 435d BMW F10 / F11 5 Series BMW F01 / F02 7 Series BMW E70 X5 50i 8HP75 Applications: BMW F90 M5 BMW F91 M8 BMW G11 750i BMW G15 M850i 8HP76 Applications: BMW G80 M3 BMW G82 M4 BMW G83 M4 BMW G87 M2 BMW F90 M5 LCI