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Shop now. Pay Later. Interest Free.
Make 4 interest-free payments of $164.55 fortnightly and receive your order now. More info
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.
12P GM 3.91 R&P (fits_3.90_&_DWN_CSE) ** USA STANDARD GEAR **
Differential Ring and Pinion
USA Standard Gear ring and pinion sets are high-quality and precision-machined replacements. They're offered for a wide variety of common and hard-to-find applications, differential case designs, and ratios. The right choice adds confidence to your install; select the USA Standard ring and pinion set recommended for your vehicle.
Brand | USA Standard Gear |
Manufacturer's Part Number | ZG GM12P-390 |
Part Type | Ring and Pinion Gears |
Product Line | USA Standard Gear Ring and Pinion Sets |
Summit Racing Part Number | SPZ-36169 |
UPC | 883584361695 |
Differential Case Design Type | GM 8.875 in. (12-bolt), passenger car |
Ring and Pinion Ratio | 3.90:1 |
Cover Bolts | 12 |
Ring Gear Bolts | 12 |
Pinion Spline Count | 30 |
Carrier Series | 3 |
Ring Gear Rotation | Standard |
Ring Gear Teeth | 39 |
Pinion Gear Teeth | 10 |
Ring Gear Diameter (in.) | 8.875 in. |
Pinion Shaft Diameter (in.) | 1.625 in. |
Installation Kit Included | No |
Cover Gasket Included | No |
Pinion Shims Included | No |
Carrier Shims Included | No |
Crush Sleeve Included | No |
Pinion Seal Included | No |
Pinion Nut Included | No |
Ring Gear Bolts Included | No |
Head Bearing Included | No |
Tail Bearing Included | No |
Carrier Bearings Included | No |
Axle Seals Included | No |
Axle Bearings Included | No |
Differential Cover Included | No |
Differential Oil Included | No |
Friction Modifier Included | No |
Installation DVD Included | No |
Quantity | Sold as a set. |
USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.90 Ratio | ||||
---|---|---|---|---|
Year | Make | Model | Submodel | Region |
1964 | Chevrolet | Impala | SS | US |
1964 | Chevrolet | Chevy II | Nova | US |
1964 | Chevrolet | Chevy II | Nova SS | US |
1964 | Chevrolet | Chevelle | SS | US |
1964 | Chevrolet | Chevy II | Base | US |
1964 | Chevrolet | Bel Air | Base | US |
1964 | Chevrolet | Biscayne | Base | US |
1964 | Chevrolet | Impala | Base | US |
1964 | Chevrolet | Chevelle | Base | US |
1964 | Buick | Wildcat | Base | US |
1965 | Chevrolet | Chevelle | Base | US |
1965 | Chevrolet | El Camino | Base | US |
1965 | Buick | Wildcat | Custom | US |
1965 | Chevrolet | Impala | SS | US |
1965 | Chevrolet | Bel Air | Base | US |
1965 | Buick | Wildcat | Base | US |
1965 | Chevrolet | Chevy II | Base | US |
1965 | Chevrolet | Chevelle | SS | US |
1965 | Buick | Wildcat | Deluxe | US |
1965 | Chevrolet | Chevy II | Nova | US |
1965 | Chevrolet | Impala | Base | US |
1965 | Chevrolet | Chevelle | Deluxe | US |
1965 | Chevrolet | Chevy II | Nova SS | US |
1965 | Chevrolet | Biscayne | Base | US |
1966 | Chevrolet | Chevelle | SS | US |
1966 | Chevrolet | Bel Air | Base | US |
1966 | Buick | Wildcat | Gran Sport | US |
1966 | Chevrolet | Chevy II | Nova | US |
1966 | Chevrolet | Caprice | Base | US |
1966 | Buick | Wildcat | Base | US |
1966 | Chevrolet | Chevy II | Nova SS | US |
1966 | Chevrolet | Chevy II | Base | US |
1966 | Chevrolet | Impala | Base | US |
1966 | Chevrolet | Impala | SS | US |
1966 | Buick | Wildcat | Custom | US |
1966 | Chevrolet | Chevelle | Deluxe | US |
1966 | Chevrolet | Biscayne | Base | US |
1966 | Chevrolet | Chevelle | Base | US |
1966 | Chevrolet | El Camino | Base | US |
1967 | Chevrolet | Impala | SS | US |
1967 | Buick | Wildcat | Base | US |
1967 | Chevrolet | Chevelle | 300 | US |
1967 | Buick | Wildcat | Custom | US |
1967 | Chevrolet | Chevy II | Base | US |
1967 | Chevrolet | Chevelle | Base | US |
1967 | Chevrolet | Caprice | Base | US |
1967 | Chevrolet | Chevelle | SS | US |
1967 | Chevrolet | Camaro | Base | US |
1967 | Chevrolet | Chevelle | Deluxe | US |
1967 | Chevrolet | Impala | Base | US |
Note: Over 50 fitments returned for this product, this table is trimmed to only display the first 50. |
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.
12P GM 3.91 R&P (fits_3.90_&_DWN_CSE) ** USA STANDARD GEAR **
Differential Ring and Pinion
USA Standard Gear ring and pinion sets are high-quality and precision-machined replacements. They're offered for a wide variety of common and hard-to-find applications, differential case designs, and ratios. The right choice adds confidence to your install; select the USA Standard ring and pinion set recommended for your vehicle.
Brand | USA Standard Gear |
Manufacturer's Part Number | ZG GM12P-390 |
Part Type | Ring and Pinion Gears |
Product Line | USA Standard Gear Ring and Pinion Sets |
Summit Racing Part Number | SPZ-36169 |
UPC | 883584361695 |
Differential Case Design Type | GM 8.875 in. (12-bolt), passenger car |
Ring and Pinion Ratio | 3.90:1 |
Cover Bolts | 12 |
Ring Gear Bolts | 12 |
Pinion Spline Count | 30 |
Carrier Series | 3 |
Ring Gear Rotation | Standard |
Ring Gear Teeth | 39 |
Pinion Gear Teeth | 10 |
Ring Gear Diameter (in.) | 8.875 in. |
Pinion Shaft Diameter (in.) | 1.625 in. |
Installation Kit Included | No |
Cover Gasket Included | No |
Pinion Shims Included | No |
Carrier Shims Included | No |
Crush Sleeve Included | No |
Pinion Seal Included | No |
Pinion Nut Included | No |
Ring Gear Bolts Included | No |
Head Bearing Included | No |
Tail Bearing Included | No |
Carrier Bearings Included | No |
Axle Seals Included | No |
Axle Bearings Included | No |
Differential Cover Included | No |
Differential Oil Included | No |
Friction Modifier Included | No |
Installation DVD Included | No |
Quantity | Sold as a set. |
USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.90 Ratio | ||||
---|---|---|---|---|
Year | Make | Model | Submodel | Region |
1964 | Chevrolet | Impala | SS | US |
1964 | Chevrolet | Chevy II | Nova | US |
1964 | Chevrolet | Chevy II | Nova SS | US |
1964 | Chevrolet | Chevelle | SS | US |
1964 | Chevrolet | Chevy II | Base | US |
1964 | Chevrolet | Bel Air | Base | US |
1964 | Chevrolet | Biscayne | Base | US |
1964 | Chevrolet | Impala | Base | US |
1964 | Chevrolet | Chevelle | Base | US |
1964 | Buick | Wildcat | Base | US |
1965 | Chevrolet | Chevelle | Base | US |
1965 | Chevrolet | El Camino | Base | US |
1965 | Buick | Wildcat | Custom | US |
1965 | Chevrolet | Impala | SS | US |
1965 | Chevrolet | Bel Air | Base | US |
1965 | Buick | Wildcat | Base | US |
1965 | Chevrolet | Chevy II | Base | US |
1965 | Chevrolet | Chevelle | SS | US |
1965 | Buick | Wildcat | Deluxe | US |
1965 | Chevrolet | Chevy II | Nova | US |
1965 | Chevrolet | Impala | Base | US |
1965 | Chevrolet | Chevelle | Deluxe | US |
1965 | Chevrolet | Chevy II | Nova SS | US |
1965 | Chevrolet | Biscayne | Base | US |
1966 | Chevrolet | Chevelle | SS | US |
1966 | Chevrolet | Bel Air | Base | US |
1966 | Buick | Wildcat | Gran Sport | US |
1966 | Chevrolet | Chevy II | Nova | US |
1966 | Chevrolet | Caprice | Base | US |
1966 | Buick | Wildcat | Base | US |
1966 | Chevrolet | Chevy II | Nova SS | US |
1966 | Chevrolet | Chevy II | Base | US |
1966 | Chevrolet | Impala | Base | US |
1966 | Chevrolet | Impala | SS | US |
1966 | Buick | Wildcat | Custom | US |
1966 | Chevrolet | Chevelle | Deluxe | US |
1966 | Chevrolet | Biscayne | Base | US |
1966 | Chevrolet | Chevelle | Base | US |
1966 | Chevrolet | El Camino | Base | US |
1967 | Chevrolet | Impala | SS | US |
1967 | Buick | Wildcat | Base | US |
1967 | Chevrolet | Chevelle | 300 | US |
1967 | Buick | Wildcat | Custom | US |
1967 | Chevrolet | Chevy II | Base | US |
1967 | Chevrolet | Chevelle | Base | US |
1967 | Chevrolet | Caprice | Base | US |
1967 | Chevrolet | Chevelle | SS | US |
1967 | Chevrolet | Camaro | Base | US |
1967 | Chevrolet | Chevelle | Deluxe | US |
1967 | Chevrolet | Impala | Base | US |
Note: Over 50 fitments returned for this product, this table is trimmed to only display the first 50. |