Gear Set Quick Change 6spl 1-3/8in

The Gear Set Quick Change 6spl 1-3/8in by Winters is a precision-engineered differential gear set designed for high-performance automotive applications where quick-change functionality is essential. This component is built for drag racing, circle track, and street performance vehicles that demand the ability to swap gear ratios without removing the entire differential housing. Quick-change gear sets eliminate downtime between races or testing sessions, allowing drivers and teams to optimize performance for different track conditions and course layouts in minutes rather than hours.

Constructed from high-strength steel, the Gear Set Quick Change 6spl 1-3/8in features a 6-spline interface with a 1-3/8-inch shaft diameter, engineered for secure engagement and minimal drivetrain slop. The set includes dual ratio options—4.11 (6.58 and 2.57) and 4.88 (3.05 and 7.81)—providing versatility for both acceleration-focused and top-speed tuning. The quick-change design utilizes a proven spline-lock mechanism that ensures positive gear retention under extreme torque loads while allowing rapid tool-free or minimal-tool changes. Winters' manufacturing standards guarantee precise tooth geometry and superior metallurgy for extended service life even in competitive environments with repeated heat cycling and shock loading.

This gear set is ideal for dedicated racers, performance shops, and serious enthusiasts who run multiple gear ratios seasonally or who test configurations during development phases. The 6-spline, 1-3/8-inch quick-change format is compatible with Winters quick-change differentials and select OEM differentials engineered with quick-change capability. Installation requires a compatible quick-change differential housing; verify your differential model supports the 6-spline quick-change standard before purchasing. The compact dimensions (4.5 x 1.6 x 7.2 inches) and manageable 4.9-pound weight make this set practical for transport between venues and easy to handle during gear changes.