This coupler can be used with all 1.250" 48 spline blower drive shafts but can be bored out to fit 1.50" register if the racer needs.
RBS stocks a full inventory of grade 8 bolts for the coupler if the racer needs #500-5012 for a socket head allen bolt or #400-5012 for a twelve point.
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.