Pulley has one offset hole for early type crank hub/blower snouts that have one offset mounting hole but pulley can be used on crank hub/blower snouts with all six bolt holes that use equal bolt spacing with no issues.
Note: This is a used item. This item might have been taken in on a trade. RBS may have inspected this item and deemed re-usable. There is no warranty expressed or implied with this item.