Silverado 1500 2WD V8-6.0L VIN U (2004)
4. Important: Apply lubricant to the insulators to aid in installation.
If equipped with a 6.6L engine, install the insulators to the muffler hangers.
5. Install a new exhaust muffler gasket.
6. With the aid of an assistant, slide the muffler forward in order to install the muffler to the exhaust muffler pipe.
7. Install the insulators to the frame hangers.
8. Important: Apply lubricant to the insulators to aid in installation.
If equipped with a 6.0L or 8.1L engine, install the insulators to the muffler hangers.
9. Install a new exhaust manifold pipe gasket.
10. With the aid of an assistant, slide the muffler forward in order to install the muffler to the catalytic converter.
11. Install the insulators to the frame hangers.
12. If equipped with a 6.6L engine, install the exhaust muffler nuts.
Tighten the nuts to 40 Nm (30 ft. lbs.).
