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Dorman 697-138 Differential Ring and Pinion - Rear
| Brand | Dorman 697-138 |
|---|---|
| Position | Rear |
| Gear Ratio | 3.73-4 |
| Installation Kit Included | No |
| Item Grade | Standard replacement |
| Package Contents | Ring gear; pinion gear |
| Fits | Chevrolet and Pontiac · 59 vehicles |
Standard replacement. Direct replacement differential ring and pinion.
Gear ratio. 3.73-4 ratio for differential setup.
Cross-references G888373 for the same application. See all 1.
$268.53Free shipping
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Dorman 697-138 Ring and Pinion for GM 12 Bolt Rear Axles
Dorman 697-138 is a standard replacement differential ring and pinion set for specific GM 12-bolt rear axle applications. It replaces the original equipment gear set on select Chevrolet and Pontiac models with a 3.73 axle ratio, helping restore proper driveline operation and gear engagement.
Key Features
- Standard replacement differential ring and pinion
- Gear ratio: 3.73-4
- Package contents: ring gear and pinion gear
- Rear axle application for GM 12-bolt differentials
- Direct replacement for specific vehicle years, makes, and models
- Part number: 697-138
Detailed Description
This Dorman differential ring and pinion is built for drivers and restorers servicing GM 12-bolt rear ends in classic Chevrolet and Pontiac applications. It is listed for vehicles such as the Chevrolet Bel Air, Camaro, Caprice, El Camino, Impala, Monte Carlo, Nova, Malibu, and Pontiac Firebird and GTO, with fitment tied to the specified rear axle configuration and carrier break requirements. If you are searching for a Dorman 697-138 ring and pinion for a Chevrolet Camaro rear axle or a Pontiac Firebird GM 12-bolt differential, this part matches the documented application details.
This part cross-references G888373 for the same application.
What It Helps Address
- Worn or damaged ring and pinion gears
- Gear noise caused by gear wear or improper tooth contact
- Loss of correct final drive ratio after differential service
- Restoration work on GM 12-bolt rear axle assemblies
- Replacement needs for classic Chevrolet and Pontiac rear differentials
Installation Notes and Tips
Verify the axle housing, carrier break, and existing ratio before installation. This application is for rear-position GM 12-bolt differentials with a 3.73 axle ratio and the listed carrier break conditions. Differential setup requires precise backlash, pinion depth, and bearing preload measurements, so professional installation or experienced drivetrain service is recommended. Installation kit is not included.
Quality Assurance
Dorman supplies this as a standard replacement drivetrain component for direct OE-style service on the listed applications. Confirm fitment against the vehicle’s axle tag, differential housing, and service specifications before ordering. Part number 697-138 is intended for the documented GM 12-bolt rear axle applications.
This part fits 59 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1972 | Chevrolet | Bel Air | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1972 | Chevrolet | Camaro | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1972 | Chevrolet | Caprice | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1972 | Chevrolet | El Camino | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1972 | Chevrolet | Impala | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1972 | Chevrolet | Monte Carlo | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1972 | Chevrolet | Nova | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1972 | Pontiac | Firebird | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1972 | Pontiac | GTO | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1971 | Chevrolet | Bel Air | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1971 | Chevrolet | Camaro | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1971 | Chevrolet | Caprice | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1971 | Chevrolet | El Camino | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1971 | Chevrolet | Impala | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1971 | Chevrolet | Monte Carlo | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1971 | Chevrolet | Nova | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1971 | Pontiac | Firebird | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1971 | Pontiac | GTO | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1970 | Chevrolet | Bel Air | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1970 | Chevrolet | Camaro | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1970 | Chevrolet | Caprice | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1970 | Chevrolet | El Camino | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1970 | Chevrolet | Impala | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1970 | Chevrolet | Monte Carlo | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1970 | Chevrolet | Nova | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1970 | Pontiac | Firebird | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1970 | Pontiac | GTO | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1969 | Chevrolet | Bel Air | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1969 | Chevrolet | Camaro | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1969 | Chevrolet | Caprice | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1969 | Chevrolet | El Camino | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1969 | Chevrolet | Impala | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1969 | Chevrolet | Nova | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1969 | Pontiac | Firebird | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1968 | Chevrolet | Bel Air | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1968 | Chevrolet | Caprice | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1968 | Chevrolet | El Camino | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1968 | Chevrolet | Impala | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1968 | Pontiac | Firebird | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1967 | Chevrolet | Bel Air | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1967 | Chevrolet | Camaro | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1967 | Chevrolet | Caprice | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1967 | Chevrolet | El Camino | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1967 | Chevrolet | Impala | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1967 | Chevrolet | Malibu | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1967 | Pontiac | Firebird | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1966 | Chevrolet | Bel Air | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1966 | Chevrolet | Caprice | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1966 | Chevrolet | El Camino | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1966 | Chevrolet | Impala | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1966 | Chevrolet | Malibu | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1965 | Chevrolet | Bel Air | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1965 | Chevrolet | El Camino | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1965 | Chevrolet | Impala | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1965 | Chevrolet | Malibu | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1964 | Chevrolet | Bel Air | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1964 | Chevrolet | El Camino | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1964 | Chevrolet | Impala | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
| 1964 | Chevrolet | Malibu | Rear | GM 12 Bolt; w/3.73 Axle Ratio; Carrier Break 2.76, 3.07, 3.90, or 4.10 Axle Ratios |
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Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
G888373