OEM Toyota Sequoia Differential Seal

Toyota Sequoia Differential Seal Parts and Q&A

• Pinion Seal
  90311-44007
  Q: How to Replace the Differential Seal in a Rear Differential on Toyota Sequoia?

  A:

  You should start the replacement by draining formal Differential oil and disconnecting the rear propeller shaft. The companion flange nut removal for 2WD requires loosening the staked part through chiseling with a hammer followed by adding 3 stud bolts with 40 mm (1.57 inch) head extensions. The installation of 3 companion flange nuts requires Special Service Tool: 09213-58013 while tool 09330-00021 holds the companion flange to remove the nut. For 4WD operations first loosen the staked part of the nut and apply Special Service Tool: 09330-00021 to hold the flange before extracting the nut. You can remove the companion flange using Special Service Tool: 09950-30012 (09951-03010, 09953-03010, 09954-03010, 09955-03030, 09956-03050). Finally, use Special Service Tool: 09308-10010 to remove the oil seal. Use Special Service Tool 09556-22010 to eliminate the front bearing after which extract the two washers and the bearing spacer. Place the front bearing as you simultaneously apply Special Service Tool: 09950-30012 (09951-03010, 09953-03010, 09954-03010, 09955-03030, 09956-03050) that goes with the companion flange to install the bearing before removing the flange. The installation of the new oil seal requires MP grease on its lip as Special Service Tools 09316-12010 and 09649-17010 along with a plastic hammer to achieve proper fitment to the differential carrier end while keeping the tools secured together with vinyl tape. When installing the companion flange to the drive pinion position the threads of a new nut with hypoid gear oil. The 2WD installation requires using three stud bolts to extend the head 40 mm (1.57 inch) before setting Special Service Tool: 09213-58013 and applying three nuts to the companion flange. Use tool Special Service Tool: 09330-00021 to secure the companion flange while torquing the nut to 147 Nm (1,500 kgf-cm, 109 ft. lbs.) before removing the nuts and stud bolts and the tool. The technician must utilize Special Service Tool: 09330-00021 to secure the companion flange while torquing the nut to 147 Nm (1,500 kgf-cm, 109 ft. lbs.) for 4WD. After adjusting drive pinion preload you must stake the drive pinion nut while reattaching the rear propeller shaft then fill the differential with hypoid gear oil to a torquing value of 49 Nm (500 kgf-cm, 36 ft. lbs.) using hypoid gear oil API GL-5 with a specified viscosity of SAE 75W-140 (Synthetic) requiring a 3.65 liters (3.86 US qts, 3.21 Imp. qts) volume.
• Seal, Oil (For Front Differential Carrier)
  90311-38066
  Q: How to Replace the Differential Seal in a Front Differential on 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.