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Dorman 630-140A Drive Axle Shaft - Rear Left or Rear Right
| Brand | Dorman 630-140A |
|---|---|
| Position | Rear Right and Rear Left |
| Wheel Bolt Pattern Size | 5 x 4.75 |
| Wheel Bolt Pattern Size | 5 x 4.75 in |
| Wheel Bolt Pattern Size | 5 x 4.75 in. |
| Wheel Studs Included | No |
| Wheel Studs Included | Non |
| Retainer Included | No |
| Retainer Included | Non |
| Inboard Spline Quantity | 28 |
| Outboard Spline Quantity | 0 |
| CV Joints Included | No |
| CV Joints Included | Non |
| Axle Nut Included | No |
| Axle Nut Included | Non |
| ABS Tone Ring Included | No |
| ABS Tone Ring Included | Non |
| Differential Case Design Type | 10 tornillos de gm |
| Differential Case Design Type | Gm 10 bolt |
| ABS Tone Ring Installed | No |
| ABS Tone Ring Installed | Non |
| Anillo del tono del ABS instalado | No |
| Axle Type | Eje axial sólido |
| Axle Type | Solid shaft axle |
| Contenidos del paquete | Eje axial |
| Diameter | 34.2 mm |
| Finish | Galvanizado |
| Finish | Galvanized |
| Hole Quantity | 10 |
| Length (In) | 29.53 in |
| Length (In) | 29.53 in. |
| Longitud (in) | 29.53 in. |
| Fits | Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac · 46 vehicles |
Direct replacement. Matches the original equipment design for straightforward installation.
Galvanized finish. Helps resist corrosion for longer-lasting protection.
Solid shaft axle. Carbon steel construction delivers dependable driveline strength.
Cross-references 1255803 for the same application. See all 1.
OE-Style Rear Axle Shaft Replacement
Dorman 630-140A is a direct replacement drive axle shaft for select GM rear applications. It is built for vehicles with a solid shaft axle layout and is sized for the specified rear left or rear right positions listed below.
Use this axle shaft when the original shaft is damaged or when axle bearings are worn and the shaft itself needs replacement. Dorman 630-140A is made from carbon steel with a galvanized finish for corrosion resistance and is engineered to match the original equipment dimensions on supported Buick, Chevrolet, Cadillac, Oldsmobile, and Pontiac models.
Key Features
- Direct replacement drive axle shaft for select rear axle applications
- Carbon steel construction with galvanized finish
- 28 spline inboard design
- 29.53 in. overall length and 34.2 mm diameter
- 5 x 4.75 in. wheel bolt pattern
- Fits GM 10-bolt differential case designs on listed applications
- Interchange reference: 1255803
Detailed Product Overview
Dorman 630-140A is built for rear axle service on select Chevrolet Nova, Chevrolet Camaro, Chevrolet El Camino, Chevrolet Malibu, Buick Skylark, Cadillac Seville, Oldsmobile Omega, and Pontiac Phoenix vehicles. It is a solid shaft axle with 10 wheel lugs, 28 inboard splines, and no outboard splines, matching the listed OE-style configuration for the supported rear left and rear right positions. This part number is a practical choice when replacing a worn or damaged axle shaft on classic GM rear-drive platforms.
This part cross-references 1255803 for the same application.
What This Axle Shaft Helps Address
- Broken or bent rear axle shaft
- Noise or vibration related to axle shaft wear
- Axle service after bearing wear or shaft damage
- Restoration work on GM rear axle assemblies
- Replacement needs on rear left or rear right positions listed in fitment
Installation Notes and Fitment
Compatible with the following applications only: Fits 1978-1979 Buick Skylark, rear right; Fits 1975 Buick Skylark, rear right; Fits 1979 Chevrolet Nova, rear right; Fits 1977 Chevrolet Nova, rear right; Fits 1976-1979 Oldsmobile Omega, rear right; Fits 1973-1974 Oldsmobile Omega, rear right; Fits 1979 Pontiac Phoenix, rear left; Fits 1977 Pontiac Phoenix, rear left; Fits 1978 Chevrolet Nova, rear left; Fits 1976 Chevrolet Nova, rear left; Fits 1978 Pontiac Phoenix, rear right; Fits 1976-1977 Buick Skylark, rear left; Fits 1976 Cadillac Seville, rear left; Fits 1974-1975 Chevrolet Nova, rear left; Fits 1972 Chevrolet Nova, rear left; Fits 1970 Chevrolet Nova, rear left; Fits 1975 Oldsmobile Omega, rear left; Fits 1973 Chevrolet Nova, rear right; Fits 1971 Chevrolet Nova, rear right; Fits 1968-1969 Chevrolet Camaro, rear right; Fits 1967 Chevrolet Camaro, rear left; Fits 1965-1967 Chevrolet El Camino, rear left; Fits 1965-1967 Chevrolet Malibu, rear right.
Review axle bearing, seal, and hardware condition before installation because those items are not included. Confirm differential case design, spline count, wheel bolt pattern, and axle position before ordering. This axle shaft is listed for GM 10-bolt cover applications where specified.
Quality Assurance
Dorman supplies OE-style replacement parts engineered to match original fit and function on the listed vehicles. Dorman 630-140A is built to the stated dimensions and application requirements for supported GM rear axle service.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1979 | Buick | Skylark | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1979 | Chevrolet | Nova | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1979 | Oldsmobile | Omega | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1979 | Pontiac | Phoenix | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1978 | Buick | Skylark | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1978 | Chevrolet | Nova | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1978 | Oldsmobile | Omega | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1978 | Pontiac | Phoenix | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1977 | Buick | Skylark | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1977 | Chevrolet | Nova | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1977 | Oldsmobile | Omega | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1977 | Pontiac | Phoenix | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1977 | Pontiac | Ventura | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1976 | Buick | Skylark | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1976 | Cadillac | Seville | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1976 | Chevrolet | Nova | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1976 | Oldsmobile | Omega | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1976 | Pontiac | Ventura | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1975 | Buick | Apollo | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1975 | Buick | Skylark | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1975 | Chevrolet | Nova | Rear Left | w/10 Bolt Cover |
| 1975 | Oldsmobile | Omega | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1975 | Pontiac | Ventura | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1974 | Buick | Apollo | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1974 | Chevrolet | Nova | Rear Left | w/10 Bolt Cover |
| 1974 | Oldsmobile | Omega | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1974 | Pontiac | Ventura | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1973 | Buick | Apollo | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1973 | Chevrolet | Nova | Rear Right | w/10 Bolt Cover |
| 1973 | Oldsmobile | Omega | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1973 | Pontiac | Ventura | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1972 | Chevrolet | Nova | Rear Left | w/10 Bolt Cover |
| 1972 | Pontiac | Ventura | Rear Right | Does Not Include Bearing, Seal, or Hardware |
| 1971 | Chevrolet | Nova | Rear Right | w/10 Bolt Cover |
| 1971 | Pontiac | Ventura | Rear Left | Does Not Include Bearing, Seal, or Hardware |
| 1970 | Chevrolet | Nova | Rear Left | w/10 Bolt Cover |
| 1969 | Chevrolet | Camaro | Rear Right | w/10 Bolt Cover |
| 1968 | Chevrolet | Camaro | Rear Right | w/10 Bolt Cover |
| 1968 | Chevrolet | Chevy II | Rear Left | w/10 Bolt Cover |
| 1967 | Chevrolet | Camaro | Rear Left | w/10 Bolt Cover |
| 1967 | Chevrolet | Chevelle | Rear Right | w/10 Bolt Cover |
| 1967 | Chevrolet | El Camino | Rear Left | w/10 Bolt Cover |
| 1966 | Chevrolet | Chevelle | Rear Left | w/10 Bolt Cover |
| 1966 | Chevrolet | El Camino | Rear Left | w/10 Bolt Cover |
| 1965 | Chevrolet | Chevelle | Rear Left | w/10 Bolt Cover |
| 1965 | Chevrolet | El Camino | Rear Left | w/10 Bolt Cover |
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