Manual Transmission Mainshaft, 10 Spline, 4WD

The USA Standard Gear ZM465WT304-2C is a replacement mainshaft specifically engineered for the GM CH465/Muncie SM465 manual transmission. This component is crucial for the proper functioning of your drivetrain, featuring a 10-spline count and designed for 4WD vehicles. This mainshaft is built to meet the demands of heavy-duty use, ensuring reliable performance and longevity. Its direct replacement design means it is intended to integrate seamlessly with your existing SM465 transmission, providing a straightforward solution for repairs or rebuilds. Compatibility is key for transmission components. This mainshaft is confirmed to fit a range of Chevrolet and GMC vehicles from the mid-1980s to the early 1990s, including models like the K1500, K2500, K3500, Blazer, Jimmy, and Suburban, all equipped with the SM465 transmission and 4WD. Please verify specific application details for your vehicle. As this is a specialized internal transmission component, professional installation is recommended to ensure correct fitment and function. Given its role in the drivetrain, a precise installation is critical for optimal performance and to prevent further damage.