GM 26041515 Front Wheel Bearing

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When changing brake pads or when elevating the vehicle for any reason, checking the front wheel bearings is usually mandatory. Since it's necessary to check each wheel for noises, rolling resistance and freeplay, lift the car by spinning its wheels in a clockwise direction to see if it makes any sound. If there is noticeable play when you hold the tire at the top and bottom and move it back and forth, then you need to examine your bearings which might entail running repairs on them or even replacing them in extreme cases. Remove all these three parts to extract your front wheel bearing; take off the hub cap, unbend straighten and disintegrate away of cotter pin, remove spindle nut along with washer. Pull slightly out on hub/disc assembly then push it back towards yourself so as to take off outer bearing before yanking out entire hub/disc assembly from inside stub axle. You should try using pliers or sharp small flat head screwdriver in order to pry this seal from rear side of this hub; afterwards use solvent cleaner upon those very same elements so as not one brush bristles are left behind within these bearings. The bearings must be perfectly clean after that wash the gears with grease removing solvent taking care that no hair is entangled therein. Replace all defective components identified especially matched sets if possible together with races inside hubs utilizing new ones respectively whenever needed. Fill up your packed stuffing box with high-temperature grease intended for front wheel bearing applying little amount of lubricant onto different portions around spindles also place slight dollop inwardly within every component race inside respective hub's bottom end. Put inner bearing which has been already loaded with greased into position then fit new sealed ring beside outer bearing well secured by washer plus spindle nuts too spun thus tightening down until spacer appears out through 1/8 inch hole present between them both moving forward . Now spin wheel forwards just until bearing seats firmly in place checking spindle nut torque; then finally carefully insert a new cotter pin and dust cap. Lastly, reinstall the brake caliper, attach the wheel/tire assembly and lower the vehicle completely as shown in this diagram after you have completed the inspection process.

To remove and install components in the front differential of selectable 4WD systems, first, loosen the wheel lug nuts and raise the vehicle securely on jackstands. Remove the right front wheel and 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 block of wood. Remove the bolts securing the axle tube to the differential carrier and the nuts attaching the tube to its support bracket. Carefully remove the output shaft tube, ensuring no components fall out. Mount the tube in a vise and remove the internal components. Measure and remove the axleshaft bearing using a slide hammer and bearing remover attachment. For installation, install the bearing to the original depth using a bearing driver or socket, then install a new seal and deflector, lubricating the seal lips with grease. Carefully drive in the axleshaft, followed by the internal components. Apply RTV sealant to the tube-to-differential housing mating surface, and install the tube assembly, tightening bolts and nuts to specified torques. Reinstall the driveaxle, front axle shift motor, and fill the differential with lubricant. For AWD systems, remove the stabilizer bar link and, if applicable, the front shock absorber. Unbolt the right driveaxle from the axleshaft flange, supporting it properly. Support the differential carrier with a floor jack and a block of wood. Remove nuts attaching the axle shaft to its support bracket and the bolts securing the axle shaft flange to the differential carrier. Use a brass punch and hammer to separate the axle shaft from the differential case side gear. Remove the inner axle shaft assembly and axle shaft. Replace the inner seal and bearing with a special tool, then apply RTV sealant to the differential sealing surface and install the inner axle shaft housing assembly. Install the axle shaft to the support bracket and align the splines with the differential side gear. Tap the axle shaft with a mallet until the ring (clip) aligns with the groove in the differential case side gear. Install the axle shaft to the inner flange and tighten the bolts. Reinstall the stabilizer link, fill the differential with lubricant, install the differential carrier splash shield, and finally, install the wheel and lug nuts. Lower the vehicle, tighten the lug nuts, and check for proper operation.

To remove the left side of a vehicle, first loosen the wheel lug nuts, raise the vehicle, place it securely on jackstands, and remove the left front wheel. Then, remove the differential carrier splash shield from under the front axle and the left driveaxle. Drain the lubricant from the front differential and pull the left axle shaft out with a slide hammer and adapter. Remove the deflector and seal from the differential and remove the bearing using a slide hammer and bearing remover attachment. To install the left side, first install the bearing with the square shoulder facing in, using a bearing driver or a socket with an outside diameter slightly smaller than that of the bearing. Then, install a new seal and deflector, lubricating the lips of the seal with multi-purpose grease. Carefully drive in the axle shaft with a soft-face hammer and fill the differential with the proper lubricant. Install the driveaxle and differential carrier splash shield, then install the wheel and lug nuts. Lower the vehicle, tighten the lug nuts to the proper torque specifications, and check for proper operation.

1. Install the bearing with the square shoulder facing in, using a bearing driver or a socket with an outside diameter slightly smaller than that of the bearing. 2. Install a new seal and deflector, lubricating the lips of the seal with multi-purpose grease. 3. Carefully drive in the axle shaft with a soft-face hammer. 4. Fill the differential with the proper lubricant. 5. Install the driveaxle and differential carrier splash shield. 6. Install the wheel and lug nuts. 7. Lower the vehicle. 8. Tighten the lug nuts to the proper torque specifications. 9. Check for proper operation.

To remove and install components in the front differential for AWD systems, follow these steps: Remove the stabilizer bar link and, if applicable, the front shock absorber. Unbolt the right driveaxle from the axleshaft flange, supporting it properly. Support the differential carrier with a floor jack and a block of wood. Remove nuts attaching the axle shaft to its support bracket and the bolts securing the axle shaft flange to the differential carrier. Use a brass punch and hammer to separate the axle shaft from the differential case side gear. Remove the inner axle shaft assembly and axle shaft. Replace the inner seal and bearing with a special tool, then apply RTV sealant to the differential sealing surface and install the inner axle shaft housing assembly. Install the axle shaft to the support bracket and align the splines with the differential side gear. Tap the axle shaft with a mallet until the ring (clip) aligns with the groove in the differential case side gear. Install the axle shaft to the inner flange and tighten the bolts. Reinstall the stabilizer link, fill the differential with lubricant, install the differential carrier splash shield, and finally, install the wheel and lug nuts. Lower the vehicle, tighten the lug nuts, and check for proper operation.

Before reinstalling the axleshaft and lowering the vehicle, it should be ensured that there is no play in the hub assembly.

After removing the old bearing, the recess should be cleaned out.

The bearing recess should be cleaned out.

After reinstalling the front wheel bearings, install the dust cap, replace the brake caliper, reattach the wheel, and check the bearings' condition by grasping the top and bottom of the tire.

The new bearing can be driven in with a bearing installer or a piece of pipe positioned against the outer bearing race.

Front wheel bearings should be checked whenever the front of the vehicle is raised, typically coinciding with brake pad replacement. During inspection, assess each wheel by spinning it and examining for noise, rolling resistance, and freeplay.

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. Carefully remove the output shaft tube, ensuring no components fall out. Mount the tube in a vise and remove the internal components. Measure and remove the axleshaft bearing using a slide hammer and bearing remover attachment. For installation, install the bearing to the original depth using a bearing driver or socket, then install a new seal and deflector, lubricating the seal lips with grease. Carefully drive in the axleshaft, followed by the internal components. Apply RTV sealant to the tube-to-differential housing mating surface, and install the tube assembly, tightening bolts and nuts to specified torques. Reinstall the driveaxle, front axle shift motor, and fill the differential with lubricant.

The hub assembly can be removed from the axle tube by using a special socket to remove the adjusting nut and pulling the hub assembly straight off the axle tube.

The new bearing can be installed using a bearing installer or a piece of pipe against the outer race.

1. Loosen the wheel lug nuts. 2. Raise the vehicle. 3. Place it securely on jackstands. 4. Remove the left front wheel. 5. Remove the differential carrier splash shield from under the front axle. 6. Remove the left driveaxle.

The first step is to remove the axleshaft and oil seal.

To check for excessive play, grasp the top and bottom of each tire and move the wheel in and out on the spindle. Any noticeable movement indicates the need for bearing inspection, repacking with grease, or replacement.

It is important to ensure that the bearing is tapped in fully and that the numbers on the bearing are visible from the outer end of the axle housing.

To remove and install components in the front differential for AWD systems, follow these steps: Remove the stabilizer bar link and, if applicable, the front shock absorber. Unbolt the right driveaxle from the axleshaft flange, supporting it properly. Support the differential carrier with a floor jack and a block of wood. Remove nuts attaching the axle shaft to its support bracket and the bolts securing the axle shaft flange to the differential carrier. Use a brass punch and hammer to separate the axle shaft from the differential case side gear. Remove the inner axle shaft assembly and axle shaft. Replace the inner seal and bearing with a special tool, then apply RTV sealant to the differential sealing surface and install the inner axle shaft housing assembly. Install the axle shaft to the support bracket and align the splines with the differential side gear. Tap the axle shaft with a mallet until the ring (clip) aligns with the groove in the differential case side gear. Install the axle shaft to the inner flange and tighten the bolts. Reinstall the stabilizer link, fill the differential with lubricant, install the differential carrier splash shield, and finally, install the wheel and lug nuts. Lower the vehicle, tighten the lug nuts, and check for proper operation.

1. Install the bearing with the square shoulder facing in, using a bearing driver or a socket with an outside diameter slightly smaller than that of the bearing. 2. Install a new seal and deflector, lubricating the lips of the seal with multi-purpose grease. 3. Carefully drive in the axle shaft with a soft-face hammer. 4. Fill the differential with the proper lubricant. 5. Install the driveaxle and differential carrier splash shield. 6. Install the wheel and lug nuts. 7. Lower the vehicle. 8. Tighten the lug nuts to the proper torque specifications. 9. Check for proper operation.

The new bearing can be installed using a bearing installer or a piece of pipe against the outer race.

A bearing puller is needed.

The hub assembly should be placed on the axle tube during installation.

The bearings should be adjusted by tightening the adjusting nut to 50 ft-lbs, then backing it off and tightening it hand-tight.

After removing the old bearing, the recess should be cleaned out.

After removing the hub assembly, the oil seal should be discarded.

The bearing puller can be found at tool stores and auto parts stores.

1. Loosen the wheel lug nuts. 2. Raise the vehicle. 3. Place it securely on jackstands. 4. Remove the left front wheel. 5. Remove the differential carrier splash shield from under the front axle. 6. Remove the left driveaxle. 7. Drain the lubricant from the front differential. 8. Pull the left axle shaft out with a slide hammer and adapter. 9. Remove the deflector and seal from the differential. 10. Remove the bearing using a slide hammer and bearing remover attachment.

The final step is to install a new oil seal and re-install the axleshaft.

Before reinstalling the axleshaft and lowering the vehicle, it should be ensured that there is no play in the hub assembly.

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 there is damage to the bearing races, replace any defective bearing races at a machine shop if necessary, ensuring that old bearings are not installed on new races.

1. Install the bearing with the square shoulder facing in, using a bearing driver or a socket with an outside diameter slightly smaller than that of the bearing. 2. Install a new seal and deflector, lubricating the lips of the seal with multi-purpose grease. 3. Carefully drive in the axle shaft with a soft-face hammer. 4. Fill the differential with the proper lubricant. 5. Install the driveaxle and differential carrier splash shield. 6. Install the wheel and lug nuts. 7. Lower the vehicle. 8. Tighten the lug nuts to the proper torque specifications. 9. Check for proper operation.

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. Carefully remove the output shaft tube, ensuring no components fall out. Mount the tube in a vise and remove the internal components. Measure and remove the axleshaft bearing using a slide hammer and bearing remover attachment. For installation, install the bearing to the original depth using a bearing driver or socket, then install a new seal and deflector, lubricating the seal lips with grease. Carefully drive in the axleshaft, followed by the internal components. Apply RTV sealant to the tube-to-differential housing mating surface, and install the tube assembly, tightening bolts and nuts to specified torques. Reinstall the driveaxle, front axle shift motor, and fill the differential with lubricant.