Chevrolet 12471329 Rear Axle Drive Shaft

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To remove a semi-floating axle shaft, first loosen the rear wheel lug nuts and raise the vehicle on jackstands. Drain the differential lubricant and remove the differential cover. Remove the pinion shaft lock screw and withdraw the pinion shaft. For models with a locking differential, rotate the differential until the shaft touches the case for access to the C-locks. Remove the C-lock from the groove on the inner end of the axleshaft and withdraw the shaft, being careful not to damage the oil seal. To install, insert the axleshaft into the housing until it engages with the differential side gear, install the C-lock, and insert the pinion shaft. Install the cover, fill the differential with lubricant, and install the brake disc or drum. For a full-floating axle shaft, remove the bolts attaching the flange to the hub and withdraw the shaft from the housing. To install, hold the axleshaft level to engage the splines and use a new gasket on the flange. Tighten the flange bolts to the proper torque specifications.

To install the rear axle assembly, the reverse order of removal should be followed. All suspension and brake fasteners should be tightened to the torque value specifications.

For leaf spring models, the spring U-bolts should be disconnected, followed by removing the springplates. Then, the jack can be lowered under the differential to remove the rear axle assembly.

The differential allows the outer rear wheel to turn at a higher speed than the inner tire when going around a corner.

The final step is to tighten the wheel lug nuts to the proper torque specifications.

In 4WD models, an extension axle shaft is used on the right side to make up the difference in distance between the differential and the right front wheel.

The outer ends of the driveaxles are equipped with ball-and-cage type CV joints capable of angular but not axial movement.

To remove and install components in the front differential for 4WD systems, follow these steps:Remove the bolts securing the axle tube to the differential carrier and the nuts attaching the tube to its support bracket.

For models with a locking differential, you should rotate the differential until the shaft touches the case for access to the C-locks.

When diagnosing axle problems, it is important to check for other possible causes such as road or tire noise, and to isolate engine and transmission noises.

After raising the vehicle and supporting it on jackstands, a jack should be positioned under the rear axle differential housing.

The initial steps to remove and install components in the front differential of selectable 4WD systems are as follows: Loosen the wheel lug nuts. Raise the vehicle securely on jackstands. Remove the right front wheel. Remove the differential carrier splash shield if equipped. Drain the lubricant from the front differential. For 4WD systems, unbolt the right driveaxle from the axleshaft flange and support it out of the way. Remove the front axle shift motor and, if applicable, disconnect the front stabilizer link or remove the front shock absorber/coil spring assembly. On 2500/3500 models, remove the front axle bracket bolts and slide the bracket forward for additional clearance. Support the differential carrier with a floor jack and a block of wood.

If the vehicle has a differential carrier splash shield, it should be removed after removing the driveaxle/hub nut.

The inner ends of the driveaxles are bolted to an axleshaft connected to the differential side gears.

To check for wear in the CV joints and driveaxle shafts, grasp each axle and rotate it in both directions while holding the CV joint housings, feeling for play indicating worn splines or sloppy CV joints.

The drive axle-to-axle shaft flange bolts should be removed while having an assistant apply the brake to prevent the driveaxle from turning.

For coil spring models, the links for the electronic suspension control sensors should be detached, followed by detaching the track bar from the rear axle. The stabilizer bar, coil springs, and upper and lower trailing arms should be disconnected from the axle assembly. Finally, the jack can be lowered under the differential to remove the rear axle assembly.

Before removing a semi-floating axle shaft, you should loosen the rear wheel lug nuts and raise the vehicle on jackstands.

No, overhauling the differential requires special tools and is not cost-effective for a do-it-yourselfer.

After removing the differential cover, you need to remove the pinion shaft lock screw and withdraw the pinion shaft.

The initial steps to remove and install components in the front differential of selectable 4WD systems are as follows: Loosen the wheel lug nuts. Raise the vehicle securely on jackstands. Remove the right front wheel. Remove the differential carrier splash shield if equipped. Drain the lubricant from the front differential. For 4WD systems, unbolt the right driveaxle from the axleshaft flange and support it out of the way. Remove the front axle shift motor and, if applicable, disconnect the front stabilizer link or remove the front shock absorber/coil spring assembly. On 2500/3500 models, remove the front axle bracket bolts and slide the bracket forward for additional clearance. Support the differential carrier with a floor jack and a block of wood.

The initial steps to remove and install components in the front differential of selectable 4WD systems are as follows: Loosen the wheel lug nuts. Raise the vehicle securely on jackstands. Remove the right front wheel. Remove the differential carrier splash shield if equipped. Drain the lubricant from the front differential. For 4WD systems, unbolt the right driveaxle from the axleshaft flange and support it out of the way. Remove the front axle shift motor and, if applicable, disconnect the front stabilizer link or remove the front shock absorber/coil spring assembly. On 2500/3500 models, remove the front axle bracket bolts and slide the bracket forward for additional clearance. Support the differential carrier with a floor jack and a block of wood.

The driveaxle/hub nut (new) and the flange bolts should be tightened to the torque values specifications during installation.

If a boot is damaged, the CV joint can be disassembled and cleaned, but if any parts are damaged, the entire driveaxle assembly must be replaced as a unit.