USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.90 Ratio

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 passenger car
• 8.875" ring gear diameter
• 12 ring gear bolts
• 30 spline pinion
• 3.90 ratio

The Yukon Gear & Axle USA Standard Ring & Pinion Gear Set is engineered to surpass OEM specifications, providing durable and reliable performance for your GM 12 bolt rear axle. Crafted with rigorous in-house quality evaluation, this set ensures precise fitment, optimal material integrity, and consistent performance. Designed for enthusiasts seeking a high-quality upgrade, this gear set is ideal for restoring or enhancing the performance of classic GM vehicles. It features a 8.875-inch ring gear diameter, 12 ring gear bolts, and a 30 spline pinion, making it suitable for various muscle cars and vintage models. Whether you're restoring a 1970s Pontiac Firebird or a Chevrolet Camaro, this gear set delivers the strength and precision needed for spirited driving and street performance. The 3.90 gear ratio strikes a balance between acceleration and highway cruising, making it a versatile choice for street enthusiasts and collectors alike. Installation requires basic mechanical skills, and the set is compatible with several classic models including the Pontiac GTO and Chevrolet Nova. Trust Yukon Gear & Axle for high-quality components that meet or exceed OEM standards, ensuring your vehicle performs reliably on the road for years to come.

Features:

• Designed to exceed OEM specifications for durability and performance

• Fits GM 12 bolt passenger car axles with 8.875-inch ring gear diameter

• Includes 12 ring gear bolts for secure assembly

• 30 spline pinion for enhanced strength and durability

• Gear ratio of 3.90 for balanced acceleration and highway cruising

• Rigorous quality evaluation ensures precise fitment and material integrity

• Suitable for classic vehicles such as Pontiac Firebird, Chevrolet Camaro, Nova, and GTO

Fitment:
Buick Wildcat Base 1964
Buick Wildcat Base 1965
Buick Wildcat Base 1966
Buick Wildcat Base 1967
Buick Wildcat Base 1968
Buick Wildcat Base 1969
Buick Wildcat Custom 1965
Buick Wildcat Custom 1966
Buick Wildcat Custom 1967
Buick Wildcat Custom 1968
Buick Wildcat Custom 1969
Buick Wildcat Custom 1970
Buick Wildcat Deluxe 1965
Buick Wildcat Gran Sport 1966
Chevrolet Bel Air Base 1964
Chevrolet Bel Air Base 1965
Chevrolet Bel Air Base 1966
Chevrolet Bel Air Base 1967
Chevrolet Bel Air Base 1968
Chevrolet Bel Air Base 1969
Chevrolet Bel Air Base 1970
Chevrolet Bel Air Base 1971
Chevrolet Bel Air Base 1972
Chevrolet Biscayne Base 1964
Chevrolet Biscayne Base 1965
Chevrolet Biscayne Base 1966
Chevrolet Biscayne Base 1967
Chevrolet Biscayne Base 1968
Chevrolet Biscayne Base 1969
Chevrolet Biscayne Base 1970
Chevrolet Biscayne Base 1971
Chevrolet Biscayne Base 1972
Chevrolet Camaro Base 1967
Chevrolet Camaro Base 1968
Chevrolet Camaro Base 1969
Chevrolet Camaro Base 1970
Chevrolet Camaro Base 1971
Chevrolet Camaro Base 1972
Chevrolet Camaro RS 1967
Chevrolet Camaro RS 1968
Chevrolet Camaro RS 1969
Chevrolet Camaro RS 1970
Chevrolet Camaro RS 1971
Chevrolet Camaro RS 1972
Chevrolet Camaro SS 1967
Chevrolet Camaro SS 1968
Chevrolet Camaro SS 1969
Chevrolet Camaro SS 1970
Chevrolet Camaro SS 1971
Chevrolet Camaro SS 1972
Chevrolet Camaro Z28 1967
Chevrolet Camaro Z28 1968
Chevrolet Camaro Z28 1969
Chevrolet Camaro Z28 1970
Chevrolet Camaro Z28 1971
Chevrolet Camaro Z28 1972
Chevrolet Caprice Base 1966
Chevrolet Caprice Base 1967
Chevrolet Caprice Base 1968
Chevrolet Caprice Base 1969
Chevrolet Caprice Base 1970
Chevrolet Chevelle 300 1967
Chevrolet Chevelle 300 1968
Chevrolet Chevelle 300 Deluxe 1967
Chevrolet Chevelle 300 Deluxe 1968
Chevrolet Chevelle 300 Deluxe 1969
Chevrolet Chevelle Base 1964
Chevrolet Chevelle Base 1965
Chevrolet Chevelle Base 1966
Chevrolet Chevelle Base 1967
Chevrolet Chevelle Base 1968
Chevrolet Chevelle Base 1970
Chevrolet Chevelle Base 1971
Chevrolet Chevelle Base 1972
Chevrolet Chevelle Concours 1967
Chevrolet Chevelle Concours 1968
Chevrolet Chevelle Concours 1969
Chevrolet Chevelle Concours 1970
Chevrolet Chevelle Concours 1971
Chevrolet Chevelle Concours 1972
Chevrolet Chevelle Concours Estate 1969
Chevrolet Chevelle Concours Estate 1970
Chevrolet Chevelle Concours Estate 1971
Chevrolet Chevelle Concours Estate 1972
Chevrolet Chevelle Deluxe 1965
Chevrolet Chevelle Deluxe 1966
Chevrolet Chevelle Deluxe 1967
Chevrolet Chevelle Greenbrier 1969
Chevrolet Chevelle Greenbrier 1970
Chevrolet Chevelle Greenbrier 1971
Chevrolet Chevelle Greenbrier 1972
Chevrolet Chevelle Malibu 1968
Chevrolet Chevelle Malibu 1969
Chevrolet Chevelle Malibu 1970
Chevrolet Chevelle Malibu 1971
Chevrolet Chevelle Malibu 1972
Chevrolet Chevelle Nomad 1968
Chevrolet Chevelle Nomad 1969
Chevrolet Chevelle Nomad 1970
Chevrolet Chevelle Nomad 1971
Chevrolet Chevelle Nomad 1972
Chevrolet Chevelle SS 1964
Chevrolet Chevelle SS 1965
Chevrolet Chevelle SS 1966
Chevrolet Chevelle SS 1967
Chevrolet Chevelle SS 1968
Chevrolet Chevelle SS 1969
Chevrolet Chevelle SS 1970
Chevrolet Chevelle SS 1971
Chevrolet Chevelle SS 1972
Chevrolet Chevy II Base 1964
Chevrolet Chevy II Base 1965
Chevrolet Chevy II Base 1966
Chevrolet Chevy II Base 1967
Chevrolet Chevy II Nova 1964
Chevrolet Chevy II Nova 1965
Chevrolet Chevy II Nova 1966
Chevrolet Chevy II Nova 1967
Chevrolet Chevy II Nova 1968
Chevrolet Chevy II Nova SS 1964
Chevrolet Chevy II Nova SS 1965
Chevrolet Chevy II Nova SS 1966
Chevrolet Chevy II Nova SS 1967
Chevrolet El Camino Base 1965
Chevrolet El Camino Base 1966
Chevrolet El Camino Base 1967
Chevrolet El Camino Base 1968
Chevrolet El Camino Base 1969
Chevrolet El Camino Base 1970
Chevrolet El Camino Base 1971
Chevrolet El Camino Base 1972
Chevrolet El Camino Custom 1968
Chevrolet El Camino Custom 1969
Chevrolet El Camino Custom 1970
Chevrolet El Camino Custom 1971
Chevrolet El Camino Custom 1972
Chevrolet El Camino SS 1968
Chevrolet El Camino SS 1969
Chevrolet El Camino SS 1970
Chevrolet El Camino SS 1971
Chevrolet El Camino SS 1972
Chevrolet Impala Base 1964
Chevrolet Impala Base 1965
Chevrolet Impala Base 1966
Chevrolet Impala Base 1967
Chevrolet Impala Base 1968
Chevrolet Impala Base 1969
Chevrolet Impala Base 1970
Chevrolet Impala Base 1971
Chevrolet Impala Base 1972
Chevrolet Impala SS 1964
Chevrolet Impala SS 1965
Chevrolet Impala SS 1966
Chevrolet Impala SS 1967
Chevrolet Monte Carlo Base 1970
Chevrolet Monte Carlo Base 1971
Chevrolet Monte Carlo Base 1972
Chevrolet Nova Base 1969
Chevrolet Nova Base 1970
Chevrolet Nova Base 1971
Chevrolet Nova Base 1972
Pontiac Firebird 350 1969
Pontiac Firebird 350 HO 1969
Pontiac Firebird 400 1969
Pontiac Firebird Base 1969
Pontiac Firebird Base 1970
Pontiac Firebird Base 1971
Pontiac Firebird Base 1972
Pontiac Firebird Esprit 1970
Pontiac Firebird Esprit 1971
Pontiac Firebird Esprit 1972
Pontiac Firebird Formula 1970
Pontiac Firebird Formula 1971
Pontiac Firebird Formula 1972
Pontiac Firebird Sprint 1969
Pontiac Firebird Trans Am 1969
Pontiac Firebird Trans Am 1970
Pontiac Firebird Trans Am 1971
Pontiac Firebird Trans Am 1972
Pontiac GTO Base 1970
Pontiac GTO Base 1971
Pontiac GTO Base 1972
Pontiac GTO The Judge 1970
Pontiac GTO The Judge 1971