Avalanche 1500 2WD V8-5.3L (2008)
12. Support the catalytic converter assemblies with suitable adjustable jacks.
13. Remove the exhaust pipe hanger bracket bolts.
14. Remove the catalytic converter to exhaust manifold nuts (2).
15. Separate the catalytic converter assemblies from the exhaust manifolds.
16. Lower the catalytic converter assemblies using the adjustable jacks.
17. Remove the exhaust seal(s) (1) as required.
Installation Procedure