In-Vehicle Service Procedures How to Remove the Oil Seal - Magnetic Speedometer Special Instructions Prior to replacing the seal, carefully inspect the transmission to make sure the oil leakage is coming from the seal. Pay particular attention to the speedometer parts, rear bearing cover gasket surfaces, rear countershaft bearing covers, and shift bar housing. For additional information on rear seal service, refer to the Seal Maintenance Guide TCSM-0912.
Special Tools Brass drift
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Item T1: Output yoke puller
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Item T15: Slide hammer
In-Vehicle Service Procedures
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See Tool Information
Procedure 1.
Disconnect the driveshaft and U-joint from the output yoke according to the OEM or driveshaft manufacturer’s instructions.
2.
Shift the transmission into 1st gear or low gear (Low Range) to prevent the output yoke from turning when loosening the output yoke nut.
3.
Remove the output yoke nut using a 70 mm or 2 3/4" socket.
4.
Use an output yoke puller to remove the output yoke (Tool ref. ID T1).
5.
Remove the speedometer sensors from the rear bearing cover. TIP: If the sensor is a thread in type, note the number of threads exposed so the sensor can be reinstalled to the same depth. If the sensor is a push in type, remove the hold down capscrew and pull the sensor out of the bore.
6.
Remove the speedometer rotor/seal sleeve and the O-ring.
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