Installation [11/2018 - ]: Procedure

1. Completely remove any oil or the like and clean the contact surfaces of the rear transfer output shaft sub-assembly and propeller with center bearing shaft assembly.
2. Completely remove any oil or the like and clean the contact surfaces of the transmission coupling assembly and propeller with center bearing shaft assembly.
3. Align the matchmarks of the transfer assembly and propeller with center bearing shaft assembly.
4. Temporarily install the propeller with center bearing shaft assembly with the 4 nuts and 4 washers.
5. Align the matchmarks of the differential carrier assembly and propeller with center bearing shaft assembly.
6. Temporarily install the propeller with center bearing shaft assembly with the 4 nuts and 4 washers.
7. Temporarily install the center support bearing and center No. 2 support bearing washer with the 2 bolts.

1. Tighten the 4 nuts of the propeller with center bearing shaft assembly and transfer assembly to the torque specification.

   Torque: 35 N.m (357 kgf/cm, 26 ft.lbf) 

2. Tighten the 4 nuts of the propeller with center bearing shaft assembly and differential carrier assembly to the torque specification.

   Torque: 35 N.m (357 kgf/cm, 26 ft.lbf) 

3. Check that the center line of the center support bearing housing is perpendicular to the axis of the propeller shaft.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   90°

4. Tighten the 2 bolts of the center support bearing to the torque specification.

   Torque: 36.8 N.m (375 kgf/cm, 27 ft.lbf) 

1. Before the angle measurement, stabilize each part by performing procedures like those described below.
   1. Rotate the propeller shaft several times by hand.
   2. Set the jack to the differential, and raise and lower the differential.
2. Using SST and a straightedge, measure the angle of the transfer flange (angle D) and the angle of the intermediate shaft (angle A).
   • SST: 09370-50010 
   NOTE:

   Make sure the straightedge and SST are at a right angle.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Straightedge	-	-
   *a	No. 1 Joint Angle	*b	D - A
   *c	90°	*d	Angle A
   *e	Angle D	*f	Angle D Measurement Position

   1. Subtract the measured angle of the intermediate shaft (angle A) from the measured angle of the transfer flange (angle D) to obtain the No. 1 joint angle.

      No. 1 Joint Angle

      Measurement Position	Engine	Transmission	Rear Differential	No. 1 Joint Angle
      D - A	A25A-FKS	UB80F	except Torque Vectoring Differential	-2°13' +/- 60'
      			for Torque Vectoring Differential	-2°08' +/- 60'

3. Using SST, measure the angle of the intermediate shaft (angle A) and the angle of the propeller shaft (angle B).
   • SST: 09370-50010 

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	No. 2 Joint Angle	*b	A - B
   *c	Angle A	*d	Angle B

   1. Subtract the measured angle of the propeller shaft (angle B) from the measured angle of the intermediate shaft (angle A) to obtain the No. 2 joint angle.

      No. 2 Joint Angle

      Measurement Position	Engine	Transmission	Rear Differential	No. 2 Joint Angle
      A - B	A25A-FKS	UB80F	except Torque Vectoring Differential	0°23' +/- 60'
      			for Torque Vectoring Differential	1°01' +/- 60'

4. Using SST, measure the angle of the propeller shaft (angle B) and the angle of the rear differential (angle C).
   • SST: 09370-50010 

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *A	except Torque Vectoring Differential	*B	for Torque Vectoring Differential
   *a	No. 3 Joint Angle	*b	B - C
   *c	Angle B	*d	Angle C

   1. Subtract the measured angle of the propeller shaft (angle B) from the measured angle of the rear differential (angle C) to obtain the No. 3 joint angle.

      No. 3 Joint Angle

      Measurement Position	Engine	Transmission	Rear Differential	No. 3 Joint Angle
      B - C	A25A-FKS	UB80F	except Torque Vectoring Differential	1°49' +/- 60'
      			for Torque Vectoring Differential	1°49' +/- 60'

5. If the measured angle of the propeller shaft is not within the specified range, or there is vibration or noise, use the following procedure to adjust the propeller shaft.
   1. Support the propeller shaft with a jack.
   2. Remove the 2 center bearing mounting bolts.
   3. Slowly lower the jack and disconnect the center bearing.
   4. Select an appropriate adjusting washer thickness from the table below, and obtain a washer set.

      Standard Adjusting Washer

      Thickness
      2.0 mm (0.0787 in.)
      4.5 mm (0.1772 in.)
      6.5 mm (0.2559 in.)

      HINT: 

      • Use washers of the same thickness on the left and right sides.
      • Do not use 2 or more washers stacked together.
      • Install the washers.

1. Install the lower No. 1 front floor heat insulator with the 3 nuts.

   Torque: 4.9 N.m (50 kgf/cm, 43 in.lbf) 

Refer to INSTALLATION [11/2018 - 02/2019] , or refer to INSTALLATION [02/2019 - 08/2020] , or refer to INSTALLATION [08/2020 - ]