Out of stock
SKU: RIC49-0113-1
UPC: 698231676011
MPN: 49-0113-1
The 3.42 12 Bolt GM Pass from RICHMOND is a precision ring and pinion gear set specifically engineered for GM 12-bolt rear axles from 1970 to 2000. This gear set is ideal for street performance, off-road, and daily-driver applications, providing a balance between acceleration response and fuel economy.
Manufactured to OEM tolerances using premium alloy steel, Richmond's ring and pinion gears feature precision tooth geometry that minimizes noise and maximizes durability under load. The 3.42 ratio is designed to enhance low-end torque while maintaining reasonable RPM levels on the highway, effectively reducing engine strain and heat generation.
These gears are particularly beneficial for modifying classic Chevy trucks, muscle cars, or performance sedans, as a factory rear gear swap is one of the most cost-effective modifications to improve vehicle dynamics without requiring engine modifications. Installation requires axle removal and differential disassembly, making professional installation recommended.
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