Specification AutomotiveFitType : universal_fit Brand : Lonffery BulletPoint1 : PRECISE ADAPTATION: Designed for standard 3500lbs trailer axles, our double-eye springs have a capacity of 1750lbs each. Specifications: Eye-to-Eye length: 25-1/4 inches; Free open: 3 inches; Leaf width: 1-3/4 inches; Leaf thickness: 5/16 inches; Bushing diameter: 9/16 inches BulletPoint2 : PACKAGE INCLUDES: 4 x 5-1/2" Long U-Bolts (1/2" diameter), 2 x Tie Plates for 1-3/4" Leaf Springs, 8 x 1/2"-20 Hex Nuts, 8 x Spring Washers, 2 x 1.25" Hangers, 2 x 1.88" Hangers, 4 x Shackle Straps, 6 x 9/16" Diameter Lock Nuts, 6 x 3" Long x 9/16" Diameter Shackle Bolts, 2 Leaf Springs BulletPoint3 : SAFETY & RELIABILITY: These components are integral to your suspension system, supporting substantial weights while alleviating stress on the trailer chassis and axles. They provide essential cushioning, absorbing shocks and vibrations for a smoother ride BulletPoint4 : EASY INSTALLATION: Engineered for straightforward installation, this trailer axle suspension kit ensures a hassle-free setup for your trailer BulletPoint5 : ROBUST CONSTRUCTION: Constructed from high-quality materials, this kit offers enhanced durability and strength, ensuring long-lasting performance under heavy loads and rough conditions, minimizing the need for frequent replacements Color : 20" SINGLE SPRING & 2 HOLDERS CompatibilityOptions : 3500 lb trailer leaf springs CompatibleWithVehicleType : Trailer ExteriorFinish : Machined ExternallyAssignedProductIdentifier : 00810067321983 ExternallyAssignedProductIdentifier1 : 795261186937 ExternallyAssignedProductIdentifier2 : 0795261186937 FitType : Universal Fit IncludedComponents : 20" Single Spring Kit ItemName : Lonffery 3500lb Tandem Trailer Leaf Spring Kit with 5-1/2" U-Bolts - 1750lbs Capacity Per Spring ItemPackageDimensions_Height : 67.31 centimeters ItemPackageDimensions_Length : 10.16 centimeters ItemPackageDimensions_Width : 15.875 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : trailer-springs Manufacturer : Lonffery ManufacturerGrade : heavy-duty Material : Metal Material1 : Nylon Material2 : steel MetalType : Alloy Steel ModelName : 20" Single Spring ModelNumber : 20" Single Spring NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 36 OeManufacturer : SW4B, UNA-108, SW-4B, 72-42(072-042-00), 93168, UNA-157, 4342-17, 8103, PR-4B, 93184 OemEquivalentPartNumber1 : 072-25 OemEquivalentPartNumber2 : SW4 PartNumber : TR-1064 PartTypeId : 7544 ProductDescription : 【PACKAGE INCLUDE】 4PCS 3-1/8" long shackle straps, 4 PCS 9/16" Nylon bushing, 6PCS 9/16" diameter lock nuts, 6PCS 3" long x 9/16" diameter shackle bolts, 4PCS 5-1/2"long U bolts (1/2''-20 Thread, Thread length 2''), 2PCS Tie Plates for 1-3/4'' leaf springs, 8PCS 1/2''-20 Hex Nuts, 8PCS Spring Washers 【FIT FOR】 Designed for 2-3/8" round axles with with 3500lbs 【SAFETY & RELIABILITY】 Upgraded spring washers prevent the nuts from loosening, giving you peace of mind during trailer use 【Enhanced Durability and Strength】 Constructed with high-quality materials, the kit ensures long-lasting performance even under heavy loads and rough road conditions, reducing the need for frequent replacements 【Easy Installation】 This shackle kit is engineered for easy installation, making it a hassle-free upgrade for your tandem axle trailer ProductSiteLaunchDate : 2024-08-16T11:06:29.829Z Size : Leaf Springs-1 Style : Standard Kit SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 26111500 WarrantyDescription : 6 month manufacturer