REMOVAL
3.7L/4.7L ENGINE
1. Raise the vehicle and support the rear of the vehicle by the side rails and allow the axle to hang free.
2. Saturate the bolts and nuts (2) with heat valve lubricant. Allow 5 minutes for penetration.
3. Position a jackstand under the rear axle.
4. Remove RH rear shock absorber (Refer to 2 - SUSPENSION/REAR/SHOCK - REMOVAL) and RH side of stabilizer bar (Refer to 2 - SUSPENSION/REAR/STABILIZER BAR - REMOVAL).
5. Remove the front exhaust pipe/catalytic converter to muffler/tailpipe assembly flange nuts (2) and ground strap (5).
6. Remove tailpipe/muffler assembly (3) from Isolators.
7. Remove the muffler/tailpipe assembly (3) from vehicle.
5.7L ENGINE
1. Raise the vehicle and support the rear of the vehicle by the side rails and allow the axle to hang free.
2. Saturate the bolts and nuts with heat valve lubricant. Allow 5 minutes for penetration.
3. Remove muffler from isolator.
4. Remove the tailpipe/resonator to muffler assembly flange nuts.
5. Remove the front exhaust pipe/catalytic converter to muffler flange nuts.
6. Remove muffler from vehicle.
6.1L ENGINE
1. Raise the vehicle and support the rear of the vehicle by the side rails and allow the axle to hang free.
2. Saturate the bolts and nuts with heat valve lubricant. Allow 5 minutes for penetration.
3. Remove muffler (2) isolators.
4. Remove resonator and tailpipe assembly (4 and 5) from isolators.
5. Remove the muffler-to-catalytic converter assembly flange nuts.
6. Remove the muffler (2) and resonator and tailpipe assembly (4 and 5) from vehicle.
7. Remove muffler-to-resonator clamps (3).
8. Separate LH and RH resonators (4 and 5) from muffler assembly (2).
9. Remove muffler (2) from vehicle.