Steering Quick Release. You will need (3) three 5/16-18 bolt and 5/16 locking washer. Aluminum Hub. 1-1/2 Steering Wheel Bolt Spacing. INSTALL: Hex steel mandrel is welded to the steering shaft Quick Release Lenkrad Parts Bin: A Summit Racing Quick-Release Steering Wheel Disconnect Make It Easier To Get In Out Of Your Race Car QuickCar Lenkrad Kupplung Material:: Aluminum Hub / Steel Mandrel, Shaft Size: 3/4 Round, UPC: Does not apply QuickCar 360 Steering Wheel Quick Release Disconnect Hub IMCA Hex Style | Motors, Parts & Accessories, Performance & Racing Parts Auto Racing Part Type: 360 Disconnect, Brand: Quick Car