The MORryde Heavy-Duty Shackle Kit is an excellent upgrade for your running gear and the answer for wear and tear. The heavy-duty kit includes 1/2" shackle brackets, bronze bushings, greaseable or "wet bolts" and nuts. The 1/2" shackle links are a stronger, more durable product that is much less subject to having the bracket elongate. The bronze bushings and wet bolts provide an opportunity for periodic lubrication that will greatly extend the product life.• Thicker shackles for added strength• Bronze bushings for more durability• Greasable bolts for less maintenance• Complete peace of mind• Loctite nuts to ensure stability 1/2"" shackle links are a stronger, more durable Loctite nuts to ensure stability | MORryde UO12-021 Heavy-Duty Leaf Spring Shackle