Brinn Bellhousing and Brinn Coupler fits 2 Piece rear main seal SBC motors. This Brinn Bellhousing and Matching Coupler only has 3 races on it! No damage or repairs! All mounting bolts are included.Commonly we use two shims in between coupler and crank that are Not included. The coupler fits 2 piece rear main seal SBC bolt pattern motors. Everything is guaranteed in perfect working condition. Free Shipping!