OEM 2003 Toyota Sequoia Differential Seal

2003 Toyota Sequoia Differential Seal Parts Q&A

• Q: How to Replace the Differential Seal in a Front Differential on 2003 Toyota Sequoia?

  A: The first step to replace the Front Differential Rear Oil Seal requires unbolting the engine under cover followed by draining differential oil. First unfasten the front propeller shaft and take off the companion flange by dislodging the staked part of the nut using a chisel and hammer followed by employing Special Service Tool: 09330-00021 as a retainer for the flange while removing the nut. The required tool for removing the companion flange is Special Service Tool: 09950-30012 (09951-03010, 09953-03010, 09954-03010, 09955-03030, 09956-03020). Managing the oil seal and oil slinger removal requires Special Service Tool: 09308-10010 for the oil seal with subsequent removal of the oil slinger. Special Service Tool: 0955-22010 allows you to dismantle the drive pinion rear bearing and extract the bearing spacer. Begin by installing a new bearing spacer and then proceed to install the rear bearing and oil slinger with Special Service Tool: 09950-30012 (09951-03010, 09953-03010, 09954-03010, 09955-03030, 09956-03020) assisted by the companion flange before once again removing the companion flange. To install the oil seal position the new lip under a coating of MP grease and utilize Special Service Tool: 09554-22010 with a hammer to insert it by maintaining the correct drive in depth at 4.5 plus or minus 0.3 mm (0.177 plus or minus 0.012 inch). To complete this step install the companion flange on the drive pinion before you apply hypoid gear oil to threads of a new nut for torque application with Special Service Tool: 09330-00021 until you reach 108 Nm (1,100 kgf-cm, 80 ft. lbs.). The drive pinion preload should be adjusted followed by staking the drive pinion nut before reinstalling the front propeller shaft. To refill the differential it requires hypoid gear oil belonging to API GL-5 family with SAE 75W-90 viscosity and 1.15 liter (1.22 US qts, 1.01 Imp. qts) capacity. Torque the oil to 39 Nm (400 kgf-cm, 29 ft. lbs.). In the final step you need to restore the engine under cover back into position.