SKU: WIN5715
MPN: 5715 w/8143 & 9147
The Ring & Pinion 4.11 w/ Bearings from Winters is designed for serious drag racers and street performance enthusiasts who require aggressive final drive ratios for high-horsepower builds. This gear set is particularly effective for quarter-mile competition, providing quick acceleration by multiplying engine torque through the differential.
With a 4.11 gear ratio, the driveshaft turns 4.11 times for every one wheel rotation, optimizing performance for muscle cars. The assembly includes precision-matched bearings (part numbers 8143 and 9147) pre-installed for easy drop-in installation and effective load distribution. Winters gears are crafted from high-strength alloy steel with precisely cut teeth to enhance power transfer efficiency under extreme torque loads.
This assembly is ideal for classic muscle cars, such as Camaros and Mustangs, as well as modern performance platforms running 450+ horsepower. It minimizes downtime and labor costs during a rear-end refresh, but users should verify differential compatibility and housing type before installation to ensure proper fitment.
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