Performance Eng QCKSGN5-411MAX-2OFF Quick Change Rear End Assembly 4.11 Ratio 2in Offset Pinion 60in Wide

The Performance Engineering QCKSGN5-411MAX-2OFF Quick Change Rear End Assembly is a premium racing rear axle system designed for circle track and modified racing applications. This complete kit features PEM's MAX option package with advanced performance upgrades for competitive racers demanding maximum strength and reduced drag.

MAX Option Features:

• Black thermal coated housing for enhanced durability and heat dissipation
• REM finished internals including ring and pinion gears, bearings, and races for reduced friction and drag
• Billet aluminum rear cover with 10-bolt big bearing design
• Lightened spool for reduced rotational weight
• Gun-drilled axles for weight reduction
• Drilled lower shaft to minimize mass
• Integrated breather kit

Standard Components Included:

• 4.11 ratio ring and pinion gear set with 10-inch ring gear
• 2-inch offset pinion configuration
• 60-inch wide housing with .188-inch wall centerless ground tubes
• Magnesium/aluminum alloy permanent mold castings
• Heat-treated lower shaft for maximum strength
• Roller pinion nose bearing for reduced friction
• Aluminum posi locking nut on pinion
• 5x5 Grand National lightweight hubs with GN hub nuts
• Wide 5 pattern, 31 spline induction hardened solid axles
• .810 x 11.75-inch brake rotors
• Forged yoke and snout seals
• 8-rib side bells for added rigidity

This complete quick change rear end allows racers to rapidly adjust final drive ratios with simple gear changes, enabling performance optimization from track to track. The 2-inch offset pinion configuration provides specific geometry benefits for modified racing chassis designs. Built with racing-proven construction and trusted by champions, this PEM Racing rear end delivers the durability and precision required for competitive circle track racing.