Yukon Gear High Performance Gear Set For GM 12P in a 3.42 Ratio

If you're looking to change the gear ratio in your GM 12-bolt rear end, perhaps to better suit larger tires or a more powerful engine, this Yukon Gear & Axle high-performance ring and pinion set is a solid option. This set features a 3.42 ratio, which is a popular choice for balancing acceleration and highway cruising for many vehicles. Yukon has a reputation for well-built drivetrain components, and this gear set is no exception. They use high-grade steel and advanced heat-treating techniques to ensure the gears can handle demanding conditions.

The tooth surface finish on these gears is designed to reduce friction and heat buildup, which is important for longevity, especially if you've added significant horsepower or plan on frequent hard use. Yukon designs their gear sets to meet OEM specifications for fitment, meaning installation should be straightforward for a qualified technician. This set is designed for the GM 12-bolt rear axle, which was common in many classic Chevrolet and Pontiac models like the Chevelle, Impala, and Firebird from the 60s and 70s.

When you're rebuilding or upgrading your differential, choosing a quality gear set is crucial for smooth operation and durability. Yukon backs their gear sets with a 1-year warranty against manufacturing defects, and they also offer an optional lifetime Y.E.S. Plan for added peace of mind.