Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Apply lubricant to the exhaust insulators in order to aid in installation.

Fig 1: Exhaust Muffler (4.3L, 4.8L, and 5.3L Engines)
Courtesy of GENERAL MOTORS CORP.
Install the muffler to the insulators.

Fig 2: Exhaust Muffler Nuts (4.3L, 4.8L, and 5.3L Engines)

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the exhaust muffler nuts.
Tighten: Tighten the nuts to 40 N.m (30 lb ft).