Beyea Dirt Modified Muffler 3" Inlet 3" Turn Down Outlet 8" Long Body - Steel CHOP2XS It should be replaced when

It should be replaced when replacing the tailshaft seal or when a driveshaft failure has occurred

Sold Separately: Mounting Bracket: P/N 11706 Cog Pulley: P/N 21109

1-7/8" x 8" Coil-over Springs

1984-1985 GMC G3500

Beyea Dirt Modified Muffler 3" Inlet 3" Turn Down Outlet 8" Long Body - Steel CHOP2XS It should be replaced whenProduct Description: Muffler Dirt Modified 3 in Inlet 3 in Straight Outlet 8 in Long Body Steel Natural Sold Individually With more than 15 years in the header fabrication business, Beyea Custom Headers knows how to customize your power curve to create a broader range of power. Each Beyea Custom Headers has been tried and tested. Beyea Custom Headers are used by many of the top Modified and Late Model race teams and engine builders across the U. S.