Specification Brand : Thomletha BulletPoint1 : 3,000lbs capacity per each spring, for 6,000lbs axle, eye to eye length: 25-1/4 inch, free open: 3 inch, width of leaf: 1-3/4 inch, 5 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 3000lbs-5 leaf springs (bushings), 4 x 3 inch round shaft 7 inch long U-bolts, U-bolt diameter 1/2 inch, 2 x U-bolt shaft plate FitType : Universal ItemName : Thomletha 6000lbs Single Trailer Axle Suspension Kit - 5 Leaves 3000lbs Trailer Double Eye Spring U-bolt kit ItemPackageDimensions_Height : 13 centimeters ItemPackageDimensions_Length : 70 centimeters ItemPackageDimensions_Width : 18 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : trailer-springs Manufacturer : Thomletha ModelNumber : Does not apply NumberOfItems : 1 PartNumber : MO-1637844-497174-AT ProductDescription : Specifications: Spring capacity: 3000 lbs Axle capacity: 6000 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: 5