GM Firebird 1967-1981 Repair Guide

Muffler

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REMOVAL & INSTALLATION



  1. Raise and safely support the vehicle on jackstands.
  2.  
  3. Spray all fasteners, which are to be removed, with penetrating oil to aid with removal.
  4.  
  5. Remove the U-bolt nuts on the front pipe and the tail pipe(s) at the muffler.
  6.  
  7. Remove the U-bolt clamps from the exhaust pipes.
  8.  
  9. Disconnect the pipes from the muffler and lower the muffler from the floor of the vehicle.
  10.  

Separating exhaust pipes from one another or from a component, such as the muffler, can be very difficult. Patience and the proper exhaust service tools, such as cut-off wheels and torches, are a great advantage when working with these parts.

  1. Installation is the reverse of removal. Make sure to position the muffler properly BEFORE tightening any clamp nuts. Also make certain to tighten the U-bolt clamp nuts evenly and securely to prevent exhaust leaks.
  2.  

 
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