Choose The Gear Ratio That Is Best For Your Vehicle. 3 Series Fits 3.07 to 3.73 Ratio Carrier, 4 Series Fits 3.90 and Numerically Higher Carrier. 30 Spline, 1.625 Diameter Pinion. Estimated to ship direct from manufacturer on 07/01/25, pending manufacturer availability.

US Gear high performance ring and pinions deliver the highest quality in the industry with quiet performance, clean installation and setup, durability, and longevity. Ring and pinion gear sets are available in many ratios for GM, Chrysler, Ford, and Dana differentials.

A wide variety of aftermarket gear ratios are available and Strange carries many GM 12 Bolt 8.875 gears in stock. Swapping ring and pinion gears is one of the first performance upgrades recommended for a number of fast drag racing cars.

Ring and Pinion Gears, GM 8.875 in. (12-bolt), Truck, 3.73:1 Ratio, 30-spline, Standard, Designed for Carrier Cases with A 3.73 and Up Gear Ratio, Kit. Part Number: YGA-10627. 4.0 out of 5 stars

Whether you’ve added tons of horsepower under the hood, upgraded to bigger tires, are just want to optimize the traction performance of your ride, Yukon offers the widest selection of gear ratios on the market to accommodate every need. Fits GM 12 bolt truck ; 8.875" ring gear diameter ; 30 spline pinion ; 12 ring gear bolts ; 3.42 ratio

Find Ring and Pinion Gears GM 8.875 in. (12-bolt), passenger car Differential Case Design Type and get Free Shipping on Orders Over $109 at Summit Racing!

USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment testing. Fits GM 12 bolt truck; 8.875" ring gear diameter; 30 spline pinion; 12 ring gear bolts; 4.56 ratio; Thick gear for 3.42 and down carrier

We offer ring and pinion GM 12 bolt car gears in all the popular ratios you’re looking for to complete your street, track, drag race, or off road build. Ring and pinion gear sets are available in many ratios for GM, Mopar, Chrysler, Ford, and Dana rear ends.

Special gear ratios are now available for the MW 12" modular rear! Call 866-508-6394 for more information!

Nov 8, 2010 · If you get a 3 series Eaton Posi you can install gears from 3.08 to 4.88 in the same differential just by ordering the right gear set. The 3 series gives you a much larger range of gear ratios than the 4 series.