>>E<< Drive Pinion Turning Torque Adjustment/Oil Seal Installation

Adjust the drive pinion turning torque by the following procedures:

1. Insert the drive pinion into the differential carrier, and then install the following parts in sequence from the carrier rear side: drive pinion spacer, drive pinion front shim, drive pinion front bearing inner race and companion flange.
   NOTE: Do not install the oil seal.
2. Tighten the companion flange self-locking nut to the specified torque while holding the companion flange with special tool MB990850.

   Tightening torque: 190 ± 30 N.m (140 ± 22 ft-lb) 

   Fig 1: Tightening Companion Flange Self-Locking Nut

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
   CAUTION: There should be no gear oil adhered to the bearing.
3. Use special tools MB990326 and MB990685 to measure the drive pinion turning torque (without the drive pinion oil seal).

   Standard value: 

   TURNING TORQUE CHART
   
   

   Bearing type	Bearing lubrication	Turning torque
   New	None (with anti-rust agent)	0.88 - 1.17 N.m (7.79 - 10.36 in-lb)
   	Gear oil applied	0.39 - 0.49 N.m (3.45 - 4.34 in-lb)

   Fig 2: Measuring Drive Pinion Turning Torque

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
4. If the drive pinion turning torque is not within the standard value, adjust the turning torque by replacing the drive pinion front shim(s) or the drive pinion spacer.
   NOTE: When selecting the drive pinion front shims, if the number of shims is large, reduce the number of shims to a minimum by selecting the drive pinion spacers. Select the drive pinion spacer from the following two types.
   HEIGHT OF DRIVE PINION SPACER
   
   

   Height of drive pinion spacer (A) mm (in)	Identification color
   57.08 (2.25)	Red
   57.72 (2.27)	-

   Fig 3: Identifying Height Of Drive Pinion Spacer

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
5. Remove the companion flange and drive pinion again. Then insert the drive pinion front bearing inner race into the differential carrier. Use special tool MB990727 to press-fit the drive pinion oil seal.
   Fig 4: Removing Companion Flange And Drive Pinion

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
6. Install the drive pinion assembly and companion flange with the mating marks properly aligned. Tighten the companion flange self-locking nut to the specified torque while holding the companion flange with special tool MB990850.

   Tightening torque: 190 ± 30 N.m (140 ± 22 ft-lb) 

   Fig 5: Adjusting Drive Pinion Turning Torque

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
7. Use special tools to measure the drive pinion turning torque (with drive pinion oil seal) to verify that the drive pinion turning torque complies with the standard value.

   Standard value: 

   TURNING TORQUE CHART
   
   

   Bearing type	Bearing lubrication	Turning torque
   New	None (with anti-rust agent)	0.98 - 1.27 N.m (8.67 - 11.24 in-lb)
   	Gear oil applied	0.49 - 0.58 N.m (4.34 - 5.13 in-lb)

   Fig 6: Measuring Drive Pinion Turning Torque

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
8. If the turning torque is not within the standard value, check the tightening torque of the companion flange self-locking nut, and the installation of the oil seal.