# USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.42 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
-   3.42 ratio

This Part Fits:

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

## Details

- **Price:** 506.23 CAD
- **Vendor:** Yukon Gear & Axle
- **Type:** Final Drive Gears

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 506.23 CAD | In stock |

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/usa-standard-ring-pinion-gear-set-for-gm-12-bolt-car-in-a-3-42-ratio)
> Updated: 2026-06-28