Pinion Flange & Oil Seal: Installation

Install NEW bearing spacer. On 2.7L and 3.4L engines with ELD, install oil storage ring and front bearing outer race. On 2.7L and 3.4L engines without ELD, install 2 washers.
Position front bearing on pinion. Install oil slinger, if equipped.
Using installer tool and companion flange, install front bearing. Remove tool and companion flange.

Install NEW seal to correct depth in differential carrier. See DRIVE PINION OIL SEAL DEPTH INSTALLATION SPECIFICATIONS table.

DRIVE PINION OIL SEAL DEPTH INSTALLATION SPECIFICATIONS

Application			In. (mm)
Tacoma
2.4L			.059 (1.50)
2.7L & 3.4L
With Electronic Locking Differential			.039 (1.00)
Without Electronic Locking Differential			.020 (.50)
Tundra			Flush With Carrier End
4Runner			.039 (1.00)

Apply grease to lip of oil seal. Install companion flange onto drive pinion. Apply grease to threads of NEW drive pinion nut. Install drive pinion nut onto drive pinion.
Tighten drive pinion to minimum specification. See TORQUE SPECIFICATIONS . Using INCH-lb. torque wrench installed on drive pinion nut, measure drive pinion rotating torque required to start rotation of drive pinion to determine drive pinion bearing preload. Drive pinion rotating torque should be within specification. See AXLE ASSEMBLY SPECIFICATIONS .
If drive pinion rotating torque exceeds specification, replace spacer and repeat procedure. If drive pinion rotating torque is less than specified, tighten drive pinion nut in small increments until correct rotating torque is obtained. DO NOT exceed maximum drive pinion nut torque. If maximum torque is exceeded, replace spacer and repeat procedure. DO NOT back off drive pinion nut.
Once correct drive pinion rotating torque is obtained, stake drive pinion nut against drive pinion. To install remaining components, reverse removal procedure. Ensure reference marks in drive shaft companion flanges are aligned. Tighten bolts and nuts to specification. See TORQUE SPECIFICATIONS . Fill differential with gear oil.