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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Yukon Gear & Axle
USA Standard Ring & Pinion Gear Set for Select GM 1964-1972 (3.90 Ratio, 12-Bolt Car)
$350.89
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 1964-1972 Buick, Chevrolet, and Pontiac passenger car models with a GM 12-bolt rear differential.
This USA Standard Ring and Pinion Gear Set is engineered to provide a reliable, high-quality solution for differential rebuilds and gear ratio changes. Designed to meet or exceed original equipment standards, each set undergoes rigorous in-house quality testing to verify dimensional accuracy, material integrity, and proper fitment. This 3.90 ratio set is ideal for drivers looking to optimize torque delivery and acceleration while maintaining the durability required for classic GM passenger car applications.
- Fits GM 12-bolt passenger car differentials
- Ring Gear Diameter: 8.875 inches
- Ring Gear Bolt Count: 12
- Pinion Spline Count: 30
- Gear Ratio: 3.90
- Manufacturer Part Number: ZG GM12P-390
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1964-1969 | Buick | Wildcat | Base |
| 1965-1970 | Buick | Wildcat | Custom |
| 1965 | Buick | Wildcat | Deluxe |
| 1966 | Buick | Wildcat | Gran Sport |
| 1964-1972 | Chevrolet | Bel Air | Base |
| 1964-1972 | Chevrolet | Biscayne | Base |
| 1967-1972 | Chevrolet | Camaro | Base |
| 1967-1972 | Chevrolet | Camaro | RS |
| 1967-1972 | Chevrolet | Camaro | SS |
| 1967-1972 | Chevrolet | Camaro | Z28 |
| 1966-1970 | Chevrolet | Caprice | Base |
| 1964-1968 | Chevrolet | Chevelle | 300 |
| 1965-1969 | Chevrolet | Chevelle | 300 Deluxe |
| 1970-1972 | Chevrolet | Chevelle | Base |
| 1967-1972 | Chevrolet | Chevelle | Concours |
| 1969-1972 | Chevrolet | Chevelle | Concours Estate |
| 1969-1972 | Chevrolet | Chevelle | Greenbrier |
| 1967-1972 | Chevrolet | Chevelle | Malibu |
| 1964-1965 | Chevrolet | Chevelle | Malibu Super Sport |
| 1968-1972 | Chevrolet | Chevelle | Nomad |
| 1968 | Chevrolet | Chevelle | Nomad Custom |
| 1971-1972 | Chevrolet | Chevelle | SS |
| 1967-1970 | Chevrolet | Chevelle | SS 396 |
| 1966 | Chevrolet | Chevelle | Super Sport 396 |
| 1964-1967 | Chevrolet | Chevy II | Base |
| 1964-1968 | Chevrolet | Chevy II | Nova |
| 1964-1967 | Chevrolet | Chevy II | Nova SS |
| 1965-1972 | Chevrolet | El Camino | Base |
| 1968-1972 | Chevrolet | El Camino | Custom |
| 1968-1972 | Chevrolet | El Camino | SS |
| 1964-1972 | Chevrolet | Impala | Base |
| 1964-1967 | Chevrolet | Impala | SS |
| 1970-1972 | Chevrolet | Monte Carlo | Base |
| 1969-1972 | Chevrolet | Nova | Base |
| 1969 | Pontiac | Firebird | 350 |
| 1969 | Pontiac | Firebird | 350 HO |
| 1969 | Pontiac | Firebird | 400 |
| 1969-1972 | Pontiac | Firebird | Base |
| 1970-1972 | Pontiac | Firebird | Esprit |
| 1970-1972 | Pontiac | Firebird | Formula |
| 1969 | Pontiac | Firebird | Sprint |
| 1969-1972 | Pontiac | Firebird | Trans Am |
| 1970-1972 | Pontiac | GTO | Base |
| 1970-1971 | Pontiac | GTO | The Judge |
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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USA Standard Ring & Pinion Gear Set for Select GM 1964-1972 (3.90 Ratio, 12-Bolt Car)
$350.89
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
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$350.89
$350.89
$350.89
Fits select 1964-1972 Buick, Chevrolet, and Pontiac passenger car models with a GM 12-bolt rear differential.
This USA Standard Ring and Pinion Gear Set is engineered to provide a reliable, high-quality solution for differential rebuilds and gear ratio changes. Designed to meet or exceed original equipment standards, each set undergoes rigorous in-house quality testing to verify dimensional accuracy, material integrity, and proper fitment. This 3.90 ratio set is ideal for drivers looking to optimize torque delivery and acceleration while maintaining the durability required for classic GM passenger car applications.
- Fits GM 12-bolt passenger car differentials
- Ring Gear Diameter: 8.875 inches
- Ring Gear Bolt Count: 12
- Pinion Spline Count: 30
- Gear Ratio: 3.90
- Manufacturer Part Number: ZG GM12P-390
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1964-1969 | Buick | Wildcat | Base |
| 1965-1970 | Buick | Wildcat | Custom |
| 1965 | Buick | Wildcat | Deluxe |
| 1966 | Buick | Wildcat | Gran Sport |
| 1964-1972 | Chevrolet | Bel Air | Base |
| 1964-1972 | Chevrolet | Biscayne | Base |
| 1967-1972 | Chevrolet | Camaro | Base |
| 1967-1972 | Chevrolet | Camaro | RS |
| 1967-1972 | Chevrolet | Camaro | SS |
| 1967-1972 | Chevrolet | Camaro | Z28 |
| 1966-1970 | Chevrolet | Caprice | Base |
| 1964-1968 | Chevrolet | Chevelle | 300 |
| 1965-1969 | Chevrolet | Chevelle | 300 Deluxe |
| 1970-1972 | Chevrolet | Chevelle | Base |
| 1967-1972 | Chevrolet | Chevelle | Concours |
| 1969-1972 | Chevrolet | Chevelle | Concours Estate |
| 1969-1972 | Chevrolet | Chevelle | Greenbrier |
| 1967-1972 | Chevrolet | Chevelle | Malibu |
| 1964-1965 | Chevrolet | Chevelle | Malibu Super Sport |
| 1968-1972 | Chevrolet | Chevelle | Nomad |
| 1968 | Chevrolet | Chevelle | Nomad Custom |
| 1971-1972 | Chevrolet | Chevelle | SS |
| 1967-1970 | Chevrolet | Chevelle | SS 396 |
| 1966 | Chevrolet | Chevelle | Super Sport 396 |
| 1964-1967 | Chevrolet | Chevy II | Base |
| 1964-1968 | Chevrolet | Chevy II | Nova |
| 1964-1967 | Chevrolet | Chevy II | Nova SS |
| 1965-1972 | Chevrolet | El Camino | Base |
| 1968-1972 | Chevrolet | El Camino | Custom |
| 1968-1972 | Chevrolet | El Camino | SS |
| 1964-1972 | Chevrolet | Impala | Base |
| 1964-1967 | Chevrolet | Impala | SS |
| 1970-1972 | Chevrolet | Monte Carlo | Base |
| 1969-1972 | Chevrolet | Nova | Base |
| 1969 | Pontiac | Firebird | 350 |
| 1969 | Pontiac | Firebird | 350 HO |
| 1969 | Pontiac | Firebird | 400 |
| 1969-1972 | Pontiac | Firebird | Base |
| 1970-1972 | Pontiac | Firebird | Esprit |
| 1970-1972 | Pontiac | Firebird | Formula |
| 1969 | Pontiac | Firebird | Sprint |
| 1969-1972 | Pontiac | Firebird | Trans Am |
| 1970-1972 | Pontiac | GTO | Base |
| 1970-1971 | Pontiac | GTO | The Judge |
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