4 Runner 2WD L4-2693cc 2.7L DOHC MFI (1997)
1. Check the runout of the companion flange by using a dial indicator. Measure the vertical and lateral runout of the companion flange. The
maximum runout is 0.10 mm (0.0039 inch). If the runout is greater than the maximum, replace the companion flange.
2. Check the ring gear backlash. Using the 09564-32011 Special Service Tool (SST) and a dial indicator, measure the ring gear backlash. The
backlash should be 0.10 - 0.18 mm (0.0039 - 0.0071 inch). If the backlash is not within the specification, adjust the side bearing preload or repair
as necessary.
3. Using a torque wrench, measure the drive pinion preload of backlash between the drive pinion and ring gear. The preload (at starting) should be
0.6 -1.0 Nm (5.2 - 8.7 inch lbs.).
4. Check the total preload by using a torque wrench and measureing the preload with the teeth of the drive pinion and ring gear in contact. The total
preload (at starting) should be 0.4 - 0.6 Nm (3.5 - 5.2 inch lbs.). If necessary, disassemble and inspect the differential.
5. If the vehicle came with Automatic Differential Disengagement (ADD), remove the A.D.D. actuator performing the following.
a. Remove the four bolts.
b. Using a hammer handle, remove the actuator.
6. If the vehicle came with A.D.D., remove the differential tube, perform the following steps.
a. Using a (E14) torx socket , remove the four torx bolts.
b. Using a plastic hammer, remove the differential tube.
c. Remove the sleeve.
d. Remove the O-ring from the differential tube.
