REMOVAL & INSTALLATION
- Elevate and safely support the vehicle.
- Matchmark the flanges on the driveshaft and pinion. Disconnect the driveshaft from the differential.
- Use a hammer and small chisel to loosen the staking on the companion flange bolt. Attach a counter-holding tool to the companion flange and remove the nut. Use the proper threaded extractor to remove the companion flange.
- Use an extractor to remove the oil seal and oil slinger from the housing.
- Make certain the new seal faces in the correct direction. Install the new seal with a driver or seal installation tool of the correct diameter. Drive the new seal in until it is recessed 0.039 in. (1.0mm) in the housing.
- Coat the inner lip of the seal with multi-purpose grease. Install the companion flange (and washer, if removed). Apply a light coat of oil to the threads of a NEW companion flange nut.
Set up the counter-holding tool and install the companion flange nut. Tighten the nut as follows:
4Runner and T100: 145 ft. lbs. (196 Nm)
Check the drive pinion preload with a torque wrench. Correct preload should be:
Pick-Up and 4Runner with 2-spider gear differentials: 811 inch lbs. (0.91.2 Nm)
- If the preload is greater than specified, the bearing spacer must be removed and replaced inside the pinion housing. Do NOT back off the companion flange nut to relieve the pressure. If the preload is less than specified (the usual case), retighten the companion flange nut in increments of 9 ft. lbs. (13 Nm) until the correct specification is reached.
Maximum allowable torque on the nut, under any condition, is as follows:
Land Cruiser and Tacoma: 325 ft. lbs. (441 Nm)
Take great care not to exceed either the preload limit or the maximum torque on the nut.
- Stake the drive pinion nut.
- Connect the rear propeller shaft, aligning the matchmarks.
- Lower the vehicle to the ground; inspect the fluid level in the axle.