Top RubberShox Modular Universal Rubber Front Rear Bump

1. Product Size & Load Weight: UB1: 1.4″H x 4″D x 0.31″ Groove Depth. Combine UB1+UB3 4.04″H x 4″D(UB13). Combine UB1+UB2+UB3 5.55″H x 4″D(UB123). Combine UB1+UB2+UB2+UB3 7.12″H x 4″D(UB1223). 2500 / 5000 lbs-force at 25% compression per pc/pair. 2. Package Contents and US Based Company: Package of rear bump stops includes ludes UB1 x2pcs, 2 Set Screws (10 MM Full Threaded SS Stud Bolt- 90/60/45mm, SS Washer, SS Nylon Insert Jam Nut, MS Nut) RubberShox bump stop patent pending US design and support. In stock with lifetime technical assistance. 3. Durable Natural Rubber Bump Stops with Customizable Heights: Our rubber bump stop is made of Maintenance-Free & Longevity Durable Natural Rubber, which is environmentally friendly and resistant to rupture, abrasion, oil, salt, gravel, UV radiation and high temperature. Combine Top Module UB1 with Sub-Module UB2 and/or UB3 to your various suspension height. 4. Suspension Enhancement: Bump stops on your vehicle’s suspension help support heavy loads, maintain alignment, and improve stability while driving or towing. By connecting the frame with the leaf spring, they reduce bouncing and sway for a smoother ride. 5. Hardness: 60 Shore A hardness. Soft at initial contact and then increase in stiffness linearly when compress (over bump or heavy load).