Toyota 90311-50031 Seal, Type T Oil

Worn oil seals in the driveaxle and speedometer gear often create leaks and are simple to repair while keeping the transaxle inside the car. When looking for driveaxle oil seal leaks, lift the car up, put jackstands below it, and if you see fluid on the side of the transaxle, the seal is bad. Before replacing a driveaxle seal, you need to take off the driveaxle, and when fixing the right side driveaxle seal, you must also disconnect the intermediate shaft and put apart the driveaxle assembly in one piece. Use a screwdriver or prybar to carefully lift out the oil seal from the transaxle bore, being careful not to damage the seal bore with any marks or scratches. If the seal won't come out this way, we need to use a special oil seal removal tool. Use a seal driver to push the new seal straight into its slot with all its edges flush, applying grease to the lip and being careful not to hit the seal's weak edge. At the transaxle, a speedometer sensor and one to two transmission speed sensors sit on the case; spray-filling these parts can show where the O-rings are wearing out. Pulling the electrical plug at each sensor lets you remove them, uncovering the old O-rings so you can put on a fresh one from each housing before replacing the speed gears and sensors, threading down the bolts tightly. The seal on the direct clutch speed sensor's transaxle housing needs attention when ATF lubricant shows up there; disconnect the sensor's electrical connector, pull out the sensor from its location, take out the O-ring, then install a fresh O-ring coated with ATF onto the sensor body, and reattach the sensor before tightening its retaining bolt.

Fluid leaks frequently occur due to wear of the drive axle oil seals or speed sensor O-rings, with replacement being relatively easy as repairs can usually be performed without removing the transaxle from the vehicle. The drive axle oil seals are located on each side of the transaxle, where the drive axle shaft is splined into the differential. If leakage at the seal is suspected, raise the vehicle and support it securely on jack stands; fluid will be found on the side of the transaxle if the seal is leaking. Remove the drive axle assembly, and if replacing the right side drive axle seal, remove the intermediate shaft and the drive axle assembly as a single unit. Carefully pry the oil seal out of the transaxle bore using a screwdriver or pry bar, ensuring not to gouge or nick the surface of the seal bore. If the oil seal cannot be removed with these tools, a special oil seal removal tool will be required. To install the new oil seal, use a large section of pipe or a large deep socket as a drift, driving it into the bore squarely and ensuring it is completely seated, while lubricating the lip of the new seal with multi-purpose grease. After installation, be careful not to damage the lip of the new seal when reinstalling the drive axle assembly. The direct clutch speed sensor seal for 2001 through 2003 models is located on the transaxle housing; check for lubricant around the sensor housing to determine if the O-ring is leaking. Disconnect the electrical connector from the direct clutch speed sensor and remove the sensor from the transaxle, then remove the O-ring. Finally, install a new O-ring on the sensor body and reinstall the direct clutch speed sensor, tightening the hold-down bolt securely.

Yes, the replacement of these seals is relatively easy and can usually be performed without removing the transaxle from the vehicle.

Begin by marking the relationship of the driveshaft to the pinion flange.

Fluid leaks occasionally occur due to wear of the driveaxle oil seals.

Disconnect the electrical connector from the direct clutch speed sensor and remove the sensor from the transaxle.