Four-Wheel-Drive Output Shaft Retaining Nut Installation

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools

J 43769: Spanner Nut Wrench - 4WD

For equivalent regional tools, refer to Special Tools .

Fig 1: Park/Neutral Position Switch Gear Positions

Courtesy of GENERAL MOTORS CORP.

The fullest clockwise position of the manual shift shaft is Park (P), which engages the park pawl.
Using a wrench on the manual shift shaft flats (1), rotate the shaft to the fullest clockwise position.

Fig 2: Output Nut (4WD)

Courtesy of GENERAL MOTORS CORP.

Ensure the park pawl is engaged.
Install the J 43769: wrench (1) onto the output shaft retaining nut, 4WD (2).

CAUTION: Refer to Fastener Caution .

Using the J 43769: wrench (1), install a new output shaft retaining nut, 4WD (2) onto the output shaft (3). Tighten the nut to 61 N.m (45 lb ft).

Fig 3: Park/Neutral Position Switch Gear Positions

Courtesy of GENERAL MOTORS CORP.

NOTE: The Neutral (N) position of the manual shift shaft is 2 detent positions counterclockwise from the fullest clockwise position.

Using a wrench on the manual shift shaft flats (1), rotate the shaft to the fullest clockwise position.
Rotate the manual shift shaft counterclockwise 2 detent positions.
Make sure the park pawl is disengaged.