8-Rib Drive Upgrade, 2005-2009 Ford 4.6 3V Mustang GT

This assembly contains items required to convert an existing supercharged 2005-2009 Mustang GT 6-Rib Drive System to 8-Rib. Available with- or without crank damper pulley.
3.48" 8-Rib S/C Drive Pulley Included.

Proper installation of supplied alternator pulley requires an OEM alternator pulley removal tool.