The 76mm 6-rib version of this idler pulley is the same pulley that is included in our MCI-AD Accessory Drive Pulley set for the Mustang Cobra application. This pulley style is used in many Ford applications, including many earlier modular applications as well as the accessory drive in select factory-supercharged cars.
This pulley measures about 3.0" from belt surface to belt surface (the pulley flanges not included in the measurement). This pulley uses the same certified 6061 aluminum, black anodizing, and high-speed, high-load bearings as our heavy-duty pulleys designed for use on the supercharger drive. This pulley ships with a billet bearing cover and stainless M8 socket-head fastener as shown, and the 6-rib version is intended to install as a direct replacement for the original pulley in appropriate applications.
The 8-rib version of this pulley is intended for custom installations. It uses the same factory-style offset as the 6-rib version, but adds the versatility of the 8-rib belt surface and the extreme durability of the double-bearing configuration.
MIP-76G