Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

If vehicle is a crew cab pick-up truck, install the exhaust heat shields to the studs.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the exhaust heat shield nuts.
Tighten

Tighten the exhaust heat shield nuts to 9 N.m (80 lb in).

Fig 1: Installing Exhaust Heat Shield & Nuts (Crew Cab)
Courtesy of GENERAL MOTORS CORP.
If vehicle is a extended cab pick-up truck, install the exhaust heat shield (1, 2) to the studs.
Install the exhaust heat shield nuts.
Tighten

Tighten the exhaust heat shield nuts to 9 N.m (80 lb in).

Fig 2: Installing Exhaust Heat Shield & Nuts (Extended Cab)
Courtesy of GENERAL MOTORS CORP.
If vehicle is a regular cab pick-up truck, install the exhaust front heat shield (1) and/or the exhaust heat shield (2) to the studs.
Install the exhaust heat shield nuts.
Tighten

Tighten the exhaust heat shield nuts to 9 N.m (80 lb in).

Fig 3: Installing Exhaust Front Heat Shield, Exhaust Heat Shield & Nuts (Regular Cab)
Courtesy of GENERAL MOTORS CORP.
Install the exhaust front heat shield to the studs.
Install the exhaust front heat shield nuts.
Tighten

Tighten the exhaust heat shield nuts to 9 N.m (80 lb in).
Install the catalytic converter, if necessary. Refer to Catalytic Converter Replacement (4.3L, 4.8L, and 5.3L Engines) or Catalytic Converter Replacement (6.0L and 8.1L Engines) .
Install the exhaust manifold pipe, if necessary. Refer to Exhaust Manifold Pipe Replacement (6.0, 6.6, and 8.1L Engines) .

Fig 4: Installing Exhaust Front Heat Shield & Nuts
Courtesy of GENERAL MOTORS CORP.