BullDog QRC (Quick Rear Change) Differential (with yoke)

The BullDog QRC (Quick Rear Change) Differential is a professional-grade driveline solution engineered for high-performance racing applications. Featuring a robust 35-spline spool design, it offers maximum power transfer and drivetrain reliability under extreme conditions.

Included is the signature HGK 6-bolt rear cover, combining sleek branding with rugged construction. The QRC system allows for fast and efficient gear swaps, and each unit comes equipped with one gear set of the buyer’s choice — enabling tailored final drive setups for varying track demands.

For advanced traction control, a premium OS Giken 2-way limited slip differential is available upon special request, providing enhanced handling and stability across aggressive driving environments.

Designed for builders and racers who demand precision, flexibility, and performance, the BullDog QRC differential is a trusted choice for top-tier racing builds.

Key Features:

• 35-spline spool configuration for maximum strength.
• Quick Rear Change design for rapid gear swaps.
• Includes 1x gear set – ratio specified by the user.
• HGK-branded 6-bolt rear cover for durability and style.
• Optional OS Giken 2-way LSD available on request.
• Ideal for drift, circuit, and high-power motorsport applications.