Lincoln F89Z-4676-AA Oil Seal Assembly

Raise the rear of the vehicle and place it securely on jackstands. Remove the rear wheels and brake drums. Mark the driveshaft and companion flange for ease of realignment during reassembly, then remove the driveshaft. Mark the relationship between the pinion and companion flange. Using an inch-pound torque wrench, measure and record the torque required to turn the pinion nut through several revolutions (pinion bearing preload). Using a suitable tool, hold the companion flange and remove the pinion nut. Using a suitable puller, remove the companion flange. Pry out the old seal with a slide hammer and reversed jaws or other appropriate tool. It may also be removed with a hammer and chisel. Clean the oil seal mounting surface. Tap the new seal into place, taking care to insert it squarely. Inspect the splines on the pinion shaft for burrs and nicks. Remove any rough areas with a crocus cloth. Wipe the splines clean. Install the companion flange, aligning it with the marks made during removal. Gently tap the flange on with a soft-faced hammer until you can start the pinion nut on the pinion shaft. Using a suitable tool, hold the companion flange while tightening the pinion nut to the minimum torque. While tightening, take frequent rotational torque measurements, using the inch-pound torque wrench, until the measurement recorded is reached. Caution: If the measurement recorded was less than the pinion bearing preload torque, continue tightening until the specified torque is reached. If it was more than specified, stop when the specified torque is reached. Under no circumstances should the pinion nut be backed off to reduce pinion bearing preload. Increase the nut torque in small increments and check the preload after each increase. Reinstall the driveshaft, brake drums and wheels. Check the differential oil level and fill as necessary. Lower the vehicle and take a test drive to check for leaks.

Raise the vehicle and support it securely on jack stands, then remove the rear wheels and brake drums. Mark the driveshaft and axle pinion flange for ease of realignment during reassembly, and remove the driveshaft. Install a torque wrench to the pinion nut and record the torque through several revolutions. Mark the relationship between the pinion and flange, hold the flange to keep it from turning, and remove the pinion nut along with the differential flange. Pry out the old seal using a slide hammer or Ford tool T65L-4851-A, then clean the oil seal mounting surface. Tap the new seal into place, ensuring it is inserted squarely. Inspect the splines on the pinion shaft for burrs and nicks, removing any rough areas with a crocus cloth and wiping the splines clean. Install the differential flange, aligning it with the marks made during removal, and tighten the pinion nut while allowing some movement for proper seating. Take frequent pinion bearing preload measurements until the original readings are obtained, then reinstall the driveshaft, brake drums, and wheels. Check the differential oil level and fill as necessary, lower the car, and take a short test drive to check for leaks.

Loosen the rear wheel lug nuts, raise the rear of the vehicle and place it securely on jackstands. Remove the rear wheels. Remove the brake drums or calipers. Mark the driveshaft and companion flange for ease of realignment during reassembly, then remove the driveshaft. Mark the relationship between the pinion and companion flange. Using an inch-pound torque wrench, measure and record the torque required to turn the pinion nut through several revolutions (pinion bearing preload). Using a suitable tool, hold the companion flange and remove the pinion nut. Using a suitable puller, remove the companion flange. Pry out the old seal with a slide hammer and reversed jaws or other appropriate tool. Clean the oil seal mounting surface. Tap the new seal into place, taking care to insert it squarely. Inspect the splines on the pinion shaft for burrs and nicks. Remove any rough areas with a crocus cloth. Wipe the splines clean. Install the companion flange, aligning it with the marks made during removal. Gently tap the flange on with a soft-faced hammer until you can start the pinion nut on the pinion shaft. Using a suitable tool, hold the companion flange while tightening the pinion nut to the minimum torque. While tightening, take frequent rotational torque measurements, using the inch-pound torque wrench, until the measurement recorded is reached. Caution: If the measurement was less than the pinion bearing preload torque, continue tightening until the specified preload is reached. If it was more than specified, stop when the specified preload is reached. Under no circumstances should the pinion nut be backed off to reduce pinion bearing preload. Increase the nut torque in small increments and check the preload after each increase. Reinstall the driveshaft, brake drums and wheels. Check the differential oil level and fill as necessary. Lower the vehicle and take a test drive to check for leaks.

Loosen the rear wheel lug nuts, raise the rear of the vehicle and place it securely on jackstands. Remove the rear wheels. Remove the brake drums or calipers. Mark the driveshaft and companion flange for ease of realignment during reassembly, then remove the driveshaft. Mark the relationship between the pinion and companion flange. Using an inch-pound torque wrench, measure and record the torque required to turn the pinion nut through several revolutions (pinion bearing preload). Using a suitable tool, hold the companion flange and remove the pinion nut. Using a suitable puller, remove the companion flange. Pry out the old seal with a slide hammer and reversed jaws or other appropriate tool. Clean the oil seal mounting surface. Tap the new seal into place, taking care to insert it squarely. Inspect the splines on the pinion shaft for burrs and nicks. Remove any rough areas with a crocus cloth. Wipe the splines clean. Install the companion flange, aligning it with the marks made during removal. Gently tap the flange on with a soft-faced hammer until you can start the pinion nut on the pinion shaft. Using a suitable tool, hold the companion flange while tightening the pinion nut to the minimum torque. While tightening, take frequent rotational torque measurements, using the inch-pound torque wrench, until the measurement recorded is reached. Caution: If the measurement was less than the pinion bearing preload torque, continue tightening until the specified preload is reached. If it was more than specified, stop when the specified preload is reached. Under no circumstances should the pinion nut be backed off to reduce pinion bearing preload. Increase the nut torque in small increments and check the preload after each increase. Reinstall the driveshaft, brake drums and wheels. Check the differential oil level and fill as necessary. Lower the vehicle and take a test drive to check for leaks.

Loosen the rear wheel lug nuts, raise the rear of the vehicle and place it securely on jackstands. Remove the rear wheels. Remove the brake drums or calipers. Mark the driveshaft and companion flange for ease of realignment during reassembly, then remove the driveshaft. Mark the relationship between the pinion and companion flange. Using an inch-pound torque wrench, measure and record the torque required to turn the pinion nut through several revolutions (pinion bearing preload). Using a suitable tool, hold the companion flange and remove the pinion nut. Using a suitable puller, remove the companion flange. Pry out the old seal with a slide hammer and reversed jaws or other appropriate tool. Clean the oil seal mounting surface. Tap the new seal into place, taking care to insert it squarely. Inspect the splines on the pinion shaft for burrs and nicks. Remove any rough areas with a crocus cloth. Wipe the splines clean. Install the companion flange, aligning it with the marks made during removal. Gently tap the flange on with a soft-faced hammer until you can start the pinion nut on the pinion shaft. Using a suitable tool, hold the companion flange while tightening the pinion nut to the minimum torque. While tightening, take frequent rotational torque measurements, using the inch-pound torque wrench, until the measurement recorded is reached. Caution: If the measurement was less than the pinion bearing preload torque, continue tightening until the specified preload is reached. If it was more than specified, stop when the specified preload is reached. Under no circumstances should the pinion nut be backed off to reduce pinion bearing preload. Increase the nut torque in small increments and check the preload after each increase. Reinstall the driveshaft, brake drums and wheels. Check the differential oil level and fill as necessary. Lower the vehicle and take a test drive to check for leaks.

Remove half shaft assembly. Use seal puller or prybar to remove seal. Connect slide hammer to puller and remove seal. Lubricate seal and align with housing bore. Use driver or socket, extension, and hammer to install seal. Ensure seal is not cocked, if so, install new one. Install half shaft assembly.

To remove the rear axle cover, raise your vehicle and support using a jack stand. Remove the bolts and nuts holding the rear axle cover to the axle mount. Put in place the bolt for the rear mount into the lower bolt hole allowing pivot forward of the axle. Slide the driveshaft forward and let it rest on the driveshaft hoop. Take off the nuts that keep the carrier on the front mount. Slowly lowering the carrier will give access to the companion flange. Use a pinion nut removal tool or a wrench and socket to get rid of it. Get rid of the companion flange as well. A screwdriver blade should be wedged between the housing and seal, the metal flange lifted using a locking plier then seal pulled out with locking pliers. To install, use an installer drive or pipe slightly smaller than a seal. Look for burrs on mating surfaces, remove them if any with emery cloth, and put back reference marked companion flange over pinion shafts.

Raise the rear of the vehicle and place it securely on jackstands. Remove the rear wheels and brake drums. Mark the driveshaft and companion flange for ease of realignment during reassembly, then remove the driveshaft. Mark the relationship between the pinion and companion flange. Using an inch-pound torque wrench, measure and record the torque required to turn the pinion nut through several revolutions (pinion bearing preload). Using a suitable tool, hold the companion flange and remove the pinion nut. Using a suitable puller, remove the companion flange. Pry out the old seal with a slide hammer and reversed jaws or other appropriate tool. It may also be removed with a hammer and chisel. Clean the oil seal mounting surface. Tap the new seal into place, taking care to insert it squarely. Inspect the splines on the pinion shaft for burrs and nicks. Remove any rough areas with a crocus cloth. Wipe the splines clean. Install the companion flange, aligning it with the marks made during removal. Gently tap the flange on with a soft-faced hammer until you can start the pinion nut on the pinion shaft. Using a suitable tool, hold the companion flange while tightening the pinion nut to the minimum torque. While tightening, take frequent rotational torque measurements, using the inch-pound torque wrench, until the measurement recorded is reached. Caution: If the measurement recorded was less than the pinion bearing preload torque, continue tightening until the specified torque is reached. If it was more than specified, stop when the specified torque is reached. Under no circumstances should the pinion nut be backed off to reduce pinion bearing preload. Increase the nut torque in small increments and check the preload after each increase. Reinstall the driveshaft, brake drums and wheels. Check the differential oil level and fill as necessary. Lower the vehicle and take a test drive to check for leaks.

Raise the vehicle and support it securely on jack stands, then remove the rear wheels and brake drums. Mark the driveshaft and axle pinion flange for ease of realignment during reassembly, and remove the driveshaft. Install a torque wrench to the pinion nut and record the torque through several revolutions. Mark the relationship between the pinion and flange, hold the flange to keep it from turning, and remove the pinion nut along with the differential flange. Pry out the old seal using a slide hammer or Ford tool T65L-4851-A, then clean the oil seal mounting surface. Tap the new seal into place, ensuring it is inserted squarely. Inspect the splines on the pinion shaft for burrs and nicks, removing any rough areas with a crocus cloth and wiping the splines clean. Install the differential flange, aligning it with the marks made during removal, and tighten the pinion nut while allowing some movement for proper seating. Take frequent pinion bearing preload measurements until the original readings are obtained, then reinstall the driveshaft, brake drums, and wheels. Check the differential oil level and fill as necessary, lower the car, and take a short test drive to check for leaks.

Before installing the new seal, lubricate the lips of the seal with high-temperature grease.

Reinstall all components removed previously by reversing the removal process, tightening all fasteners to their specified torque values.

Raise the rear of the vehicle and place it securely on jackstands.