The Damyprd TH350/TH350C Transmission Thrust Washer Kit delivers critical reinforcement for GM Turbo 350 transmissions. Crafted from SAE 8620 alloy steel, each washer undergoes carburizing heat treatment to achieve a 60-62 HRC surface hardness – 30% higher than industry standards – ensuring exceptional resistance to deformation under torque loads. This 8-piece set covers all thrust surfaces (Part Numbers: 8677417, 8677418, 8677420), including the forward drum, direct clutch, and planetary gear assemblies. Precision-machined to 0.005"-0.015" clearance specifications, it eliminates end-play issues that cause gear misalignment and premature failure. Ideal for high-performance rebuilds, racing applications, or daily drivers, the kit restores factory-fit functionality while providing upgraded durability. Compatible with vehicles from Chev rolet Camaro to GM C Jim my (1970-1985 model years). All components are 100% inspected for dimensional accuracy and surface finish.