Specification Brand : Thomletha BulletPoint1 : 2,000lbs capacity per each spring, for 4,000lbs axle, eye to eye length: 25-1/4 inch, free open: 3 inch, width of leaf: 1-3/4 inch, 3 leaves BulletPoint2 : The leaf spring provides a connection point for the trailers axle, suspending it from the trailers frame BulletPoint3 : Each blade spring bends to absorb road shocks while driving, ensuring horizontal driving on bumpy and uneven surfaces BulletPoint4 : To install this leaf spring, you need the hanger, shackle strap, and suspension bolts, and if you are just replacing the spring, you should replace the shackle strap BulletPoint5 : Product includes 2 x 2000lbs-3 leaf springs (bushings), 2 x center hangers, 2 x front and rear hangers, 4 x 2-3/8 inch round shaft 5-1/2 inch long U-bolts, U-bolt diameter 1/2 inch, 2 x U-bolt shaft plate, 4 x shackle straps, 6 x shackle bolts and lock nuts, 4 x bushings FitType : Universal ItemName : Thomletha 4000lbs Single Trailer Axle Suspension Kit - 3 Leaves 2000lbs Trailer Double Eye Spring U-bolt kit Hangers Kit Shackle Straps Kit ItemPackageDimensions_Height : 13 centimeters ItemPackageDimensions_Length : 70 centimeters ItemPackageDimensions_Width : 16 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : trailer-springs Manufacturer : Thomletha ModelNumber : Does not apply NumberOfItems : 1 PartNumber : MO-1384414-480879-AT ProductDescription : Product Specifications: Spring capacity: 2000 lbs Axle capacity: 4000 lbs Length from center of spring eye to center of spring eye (unloaded): 25-1/4 inch Free open: 3 inch Spring width: 1-3/4 inch Eye diameter with bushing: 9/16 inch Single leaf thickness: 5/16 inch Number of leaves: 3