2 Disc Bolt Kit

The Quarter Master 2 Disc Bolt Kit (SKU QTR209508) is an essential fastener assembly designed for high-performance clutch and transmission builds where reliability under extreme load is non-negotiable. Whether you're upgrading a street machine, building a dedicated drag platform, or restoring a classic with modern driveline components, this bolt kit provides the critical connection between dual-disc clutch packs and your flywheel or pressure plate assembly. Built to withstand the shock loads and continuous slip cycles common in manual transmission performance applications, this kit represents the precision engineering Quarter Master is known for in the racing and high-horsepower aftermarket.

These bolts are engineered to exacting tolerances, utilizing premium materials and heat-treating processes that ensure consistent clamping force across all fastener points. Proper bolt specification is critical in dual-disc applications because uneven preload can lead to disc slippage, chatter, or premature wear on one pack while starving the other. The 2 Disc Bolt Kit maintains uniform load distribution, preventing the common failure mode of individual bolt stretch or galling that occurs under repeated engagement cycles. Quarter Master's manufacturing standards guarantee dimensional consistency that allows for precise torque sequencing during installation, a practice that directly correlates to clutch longevity and predictable engagement characteristics in both street and competition environments.

This kit is ideal for technicians and enthusiasts assembling or rebuilding Quarter Master dual-disc clutch systems, particularly in Chevrolet small-block and big-block platforms, Ford modular engines, and Mopar applications where factory single-disc capacity falls short. Compatibility depends on your specific clutch assembly diameter and pressure plate design, so verify your Quarter Master clutch model number before ordering. Installation requires a torque wrench, a methodical star-pattern sequence to avoid disc misalignment, and adherence to Quarter Master's published torque specifications—typically in the 30–50 ft-lbs range depending on bolt grade and application. Keep a backup kit on hand for race teams or high-mileage builds where bolt inspection and replacement during maintenance intervals is standard practice.