Yukon Gear And Axle Differential Ring And Pinion (MPN: YG GM12P-390)

High performance ring and pinion for GM 12 bolt car axle

The Yukon Gear and Axle Differential Ring and Pinion is engineered for high performance applications, specifically designed for the GM 12 bolt car axle. With an 8.875 inch diameter ring gear and a 3.90 gear ratio, this product ensures optimal performance under demanding conditions. Yukon employs advanced design and testing processes, utilizing high grade steel to meet OEM specifications, ensuring durability and reliability in various driving scenarios.

The gear tooth surface finish is meticulously crafted to reduce friction and heat, making it suitable for long races and high torque situations. Each component is manufactured to exacting specifications, which guarantees a precise fit and enhanced performance. This ring and pinion set is compatible with carriers that support 4.10 and numerically higher ratios, making it a versatile choice for performance enthusiasts.

Yukon Gear and Axle stands by its commitment to quality, with rigorous testing in-house to ensure that every product meets the highest standards. This differential ring and pinion set is an essential upgrade for those looking to enhance their vehicle's performance and reliability.

Features

• Ensure Each Item Manufactured Meets Exacting Specifications And Quality Standards
• Gear Tooth Surface Finish Reduces Both Friction And Heat For Long Races And High Torque Conditions
• High Grade Steel In Both The Ring And Pinion, With Fitment Designed To OEM Specs

Specifications

• Manufacturer: Yukon Gear & Axle
• Manufacturer Part Number: YG GM12P-390
• Axle Model: GM 8.875 Inch
• Ratio: 3.90
• Ring Gear Diameter (IN): 8-7/8 Inch
• Pinion Shaft Diameter (IN): 1-5/8 Inch
• Pinion Spline Count: 30
• Ring Gear Rotation: Standard
• Carrier Compatibility: 4.10 And Numerically Higher
• Ring Gear Teeth: 39
• Pinion Gear Teeth: 10
• Number Of Cover Bolts: 12
• Ring Gear Bolts: 12
• Material: Steel

Compatibility / Fit

• 1964-1970 Buick Wildcat
• 1964-1972 Chevrolet Bel Air
• 1963-1972 Chevrolet Biscayne
• 1967-1972 Chevrolet Camaro
• 1966-1972 Chevrolet Caprice
• 1964-1972 Chevrolet Chevelle
• 1964-1968 Chevrolet Chevy II
• 1963-1979 Chevrolet Corvette
• 1997-2004 Chevrolet Corvette
• 1964-1973 Chevrolet El Camino
• 1963-1972 Chevrolet Impala
• 1970-1970 Chevrolet Kingswood
• 1964-1964 Chevrolet Malibu
• 1967-1967 Chevrolet Malibu
• 1970-1972 Chevrolet Monte Carlo
• 1969-1972 Chevrolet Nova
• 1970-1970 Chevrolet Townsman
• 1959-1959 Fiat 1100
• 1964-1964 Oldsmobile 442
• 1957-1957 Oldsmobile 88
• 1957-1964 Oldsmobile 98
• 1961-1961 Oldsmobile Classic 98
• 1961-1964 Oldsmobile Cutlass
• 1958-1964 Oldsmobile Dynamic 88
• 1961-1972 Oldsmobile F85
• 1957-1964 Oldsmobile Fiesta
• 1957-1957 Oldsmobile Golden Rocket 88
• 1962-1963 Oldsmobile Jetfire
• 1964-1964 Oldsmobile Jetstar 88
• 1964-1964 Oldsmobile Jetstar I
• 1957-1957 Oldsmobile Starfire
• 1961-1964 Oldsmobile Starfire
• 1957-1964 Oldsmobile Super 88
• 1964-1964 Oldsmobile Vista Cruiser
• 1957-1964 Pontiac Bonneville
• 1957-1964 Pontiac Catalina
• 1957-1958 Pontiac Chieftain
• 1967-1972 Pontiac Firebird
• 1962-1972 Pontiac Grand Prix
• 1964-1972 Pontiac GTO
• 1963-1972 Pontiac LeMans
• 1957-1964 Pontiac Star Chief
• 1957-1958 Pontiac Super Chief
• 1961-1964 Pontiac Tempest
• 1970-1970 Pontiac Tempest
• 1960-1961 Pontiac Ventura

Technical Documents

• YukonKitInstallManual_Complete.pdf