A leaf spring shackle is what attaches the leaf spring to the frame of your vehicle. The leaf spring shackle bushing is a small piece of metal surrounded by rubber that passes through the leaves to prevent metal on metal contact between the spring and the shackle. The leaf spring shackle bushing provides padding and security, while also dampening vibrations. When you check your leaf spring, be sure to also check your leaf spring shackle bushing for damage or corrosion. For leaf springs, bushings, and suspension parts, check out O'Reilly Auto Parts for all of your car, truck, and SUV needs.