Check the listing for details. Energy Suspension Universal Kit 2.5" wide - several bolt sizes available.. Condition: New. Listed at 55.00 USD. Build Your Own Suspension === Pack of 4 ====This Kit has an overall width of 2.5 inches from end to end. (more sizes in our store)Available in many bolt diameters and overall widths up to 3 ” for the same price. Email us the bolt diameter you want after you buy the item. Contents:8 Urethane bushing halves4 DOM weldable outer sleeves4 Aluminum inner sleeves. Bolt Diameters available are 10mm , 12mm, 3/8”, 1/2”, 9/16” and 5/8”. Let us know what bolt size you need. Universal Bushing Assembly Designed and Engineered for A-Arms, Trailing Arms, Motor Mounts and many more racing applications. Our group has been engineering Trophy Truck suspension since 2004. This is a universal application to build your own suspension. Specification Below;Urethane Bushing Durometer is 80.Outer Sleeve is CNC machined DOM steel Tube 1.5 OD x .120 wall.Inner Sleeve is CNC machined 6061 Aluminum.Engineered by DEM Solution LLC locations in Texas and Nevada