GM Service Manual Online
For 1990-2009 cars only

Application

GM SPO Group Number

Catalytic Converter Gasket, Bolt, Rivet, Shield and Stud

3.690

Catalytic Converter and Nut

3.685

Exhaust Manifold Pipe

3.609

Exhaust Manifold Pipe Nut and Stud

3.613

Exhaust Manifold Pipe Seal

3.611

Exhaust Muffler

3.701

Exhaust Muffler Hanger and Insulator

3.704

Exhaust Pipe Hanger, Insulator, Nut and Rivet

3.616