Heavy Duty Shackle Set - Energy Suspension 4.2135G UPC: 703639331681

Energy Suspension is a self-contained company with all services in-house–in order to maintain the highest quality control possible. They have over two decades of in-house experience in innovating, engineering and formulating a wide selection of polyurethane components for many different industries. This has qualified Energy Suspension as a premier manufacturer of the highest quality polyurethane products available today. Excellence is company policy, from the initial design stages, where tolerances, preloads and material formulations are made–through the molding processes, to welding techniques, to hardware selection. This attention to component function and the devotion to quality has resulted in nine U.S. Patents for the company. Innovations include: FIRST with a state-of-the-art on-site new product development program which carefully analyzes various vehicle reactions equipped with Energy's Performance Polyurethane technology. FIRST with the largest product line in the industry for both import and domestic vehicles, and it still is! FIRST with replacement Performance Polyurethane automotive Control Arm Bushings containing outer metal shells. FIRST with a patented Performance Polyurethane Transmission Mounts utilizing an Interlocking Safety Feature. FIRST to offer complete Performance Polyurethane suspension bushing Master Sets for front-to-rear coverage of vehicle suspensions for popular import & domestic vehicles-called THE HYPER-FLEX SYSTEM. FIRST with Polyurethane Greaseable Anti-Sway Bar Bushings which feature easy greaseable zerk fittings. FIRST with Performance Polyurethane Ball Joint and Tie Rod Dust Boots. FIRST with a complete Performance Polyurethane Vehicle Product Catalog Web Site that is updated weekly!