Power Transfer Unit Extension Housing Installation

Fig 1: Power Transfer Unit Extension Housing

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	Power Transfer Unit Cover Housing Seal NOTE: Do NOT reuse the housing seal. Install a NEW seal during assembly. Inspect the extension housing and main housing seal surfaces to ensure they are clean and free of damage prior to assembly.
2	Power Transfer Unit Extension Housing Assembly
3	Power Transfer Unit Cover Extension Housing Bolt (Qty: 10) CAUTION: Refer to Fastener Caution . CAUTION: This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component. Procedure Clean the internal threads (no residual pre-applied adhesive allowed) Use brand NEW bolts / screws without pre-applied adhesive Apply threadlocker to the threads of the NEW bolts. Refer to Adhesives, Fluids, Lubricants, and Sealers . NOTE: Install NEW cover extension housing bolts during assembly. Tighten in sequence 70 N.m (52 lb ft)

Callout

Component Name

Power Transfer Unit Cover Housing Seal

NOTE:

Do NOT reuse the housing seal. Install a NEW seal during assembly.
Inspect the extension housing and main housing seal surfaces to ensure they are clean and free of damage prior to assembly.

Power Transfer Unit Extension Housing Assembly

Power Transfer Unit Cover Extension Housing Bolt (Qty: 10)

CAUTION:

Refer to Fastener Caution .

CAUTION:

This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

Procedure

Clean the internal threads (no residual pre-applied adhesive allowed)
Use brand NEW bolts / screws without pre-applied adhesive
Apply threadlocker to the threads of the NEW bolts. Refer to Adhesives, Fluids, Lubricants, and Sealers .

NOTE:

Install NEW cover extension housing bolts during assembly.

Tighten in sequence 70 N.m (52 lb ft)