The 3/4-36 spline to 3/4"-36 spline Steering Shaft Coupler Non Flex GM S83515 is a reliable and durable component designed for steering systems. With interchange part numbers like 91031581 and manufacturer part numbers USC001 and S83515, this coupler ensures compatibility and quality performance. Specifically designed for GM vehicles, this product provides a smooth and efficient transfer of power between the steering shaft and the steering gear. Perfect for car and truck parts and accessories, this steering shaft coupler is a must-have for maintaining proper steering function in your vehicle.