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Removal Procedure

NOTE: Do not over-flex or damage the flex decoupler joint when moving the flex decoupler joint from the normal mounting position. The flex decoupler joint will flex a maximum of six degrees which is equivalent to the pipes connected at the joint which move 1 inch for each foot length of pipe. A three foot pipe would move a maximum of three inches.
Fig 1: Identifying Heat Shield
GM1650894Courtesy of GENERAL MOTORS CORP.
  1. Remove the catalytic converter. Refer to Catalytic Converter Replacement (RPO LE5)  or Catalytic Converter Replacement (RPO LSJ)  or Catalytic Converter Replacement (RPO L61) .
  2. Remove the muffler pipe forward insulators from the underbody hangers, and support the muffler pipe.
  3. Remove the heat shield nut.
  4. Drill out heat shield rivets.
  5. Remove the heat shield.
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