K 1500 Yukon 4WD V8-5.3L VIN Z Flex Fuel (2003)
10. Remove the rear shock absorbers lower bolts and nuts.
11. Lower the rear axle slightly, using the adjustable jack stands, in order to remove the muffler.
12. Remove the exhaust muffler nuts.
13. Remove the muffler from the insulators.
Installation Procedure
1. Apply lubricant to the exhaust insulators in order to aid in installation.