Yukon Gear & Axle USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.90 Ratio ZG GM12P-390
YUK USA Std Gear Set - GM
Differential Ring and Pinion
12P GM 3.91 R&P (fits_3.90_&_DWN_CSE) ** USA STANDARD GEAR **
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.
Vehicle Fitments:
| 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, RS, Z28, SS |
| 1966 - 1970 | Chevrolet | Caprice | Base |
| 1967 - 1968 | Chevrolet | Chevelle | 300 |
| 1967 - 1969 | Chevrolet | Chevelle | 300 Deluxe |
| 1964 - 1972 | Chevrolet | Chevelle | Base, SS |
| 1967 - 1972 | Chevrolet | Chevelle | Concours |
| 1965 - 1967 | Chevrolet | Chevelle | Deluxe |
| 1969 - 1972 | Chevrolet | Chevelle | Greenbrier, Concours Estate |
| 1968 - 1972 | Chevrolet | Chevelle | Nomad, Malibu |
| 1964 - 1968 | Chevrolet | Chevy II | Nova |
| 1964 - 1967 | Chevrolet | Chevy II | Nova SS, Base |
| 1965 - 1972 | Chevrolet | El Camino | Base |
| 1968 - 1972 | Chevrolet | El Camino | SS, Custom |
| 1964 - 1972 | Chevrolet | Impala | Base |
| 1964 - 1967 | Chevrolet | Impala | SS |
| 1970 - 1972 | Chevrolet | Monte Carlo | Base |
| 1969 - 1972 | Chevrolet | Nova | Base |
| 1969 | Pontiac | Firebird | 400, 350 HO, Sprint, 350 |
| 1970 - 1972 | Pontiac | Firebird | Formula, Esprit |
| 1969 - 1972 | Pontiac | Firebird | Trans Am, Base |
| 1970 - 1972 | Pontiac | GTO | Base |
| 1970 - 1971 | Pontiac | GTO | The Judge |