Mounts to driver or passenger side of engine using two bolts attaching the water pump. 6.15" alternator mount center to center Will not interfere with existing belt drive systems in most cases Designed for use with 289-1004 and 916-67999 Black powder-coated aluminum Hardware Included This bracket will attach to either the driver or passenger side of the engine using the two bolts attaching the water pump. In most cases, this drive system will not interfere with existing setups. This bracket is designed for use with our GM Denso Style 1-Wire Mini Race Alternator, Mini Race Alternator Water Pump Pulley, and a 54.5" effective length v-belt (such as Gates 7545). If needing a complete setup, see SKU# 91668000 which has all of these parts bundled together. Mounts to driver or passenger side of engine using two bolts attaching the water pump. 6.15" alternator mount center to center. Will not interfere with existing belt drive systems in most cases. Designed for use with 289-1004 and 916-67999. Black powder-coated steel. Hardware included.