{"product_id":"aeagle-4-leaf-1750lb-double-eye-spring-kit-trailer-suspension","title":"AEagle 4 Leaf 1750lb Double Eye Spring Kit - Trailer Suspension","description":"\u003cp\u003eIn this review of the AEagle 4 Leaf 1750lb Double Eye Spring Kit the bottom line is clear: it is a practical, budget-friendly suspension replacement for owners of small trailers who need a straightforward swap for worn springs. The kit includes two 4-leaf double eye springs rated at 1,750 lb each for a combined 3,500 lb axle capacity and arrives as a complete hanger and U-bolt kit, so installers get most of the hardware needed for a single axle job in one package. It is best suited to DIYers and repair shops focused on function and value rather than cosmetic perfection.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect replacement:\u003c\/strong\u003e Replaces part number SW4B and offers the same eye-to-eye length and capacity so it fits most trailers designed for 1,750 lb springs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Includes two springs plus a 3,500 lb axle U-bolt kit and hanger kit, which reduces the need to source separate hardware for a single axle installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust capacity:\u003c\/strong\u003e Each spring is rated at 1,750 lb so the pair supports a typical 3,500 lb trailer axle with predictable load handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable finish:\u003c\/strong\u003e Springs are treated with an anti-rust coating to improve corrosion resistance for longer service life in wet or salty environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear installation parameters:\u003c\/strong\u003e The kit lists exact dimensions such as 25-1\/4' eye-to-eye, 3' free open and 1-3\/4' leaf width to help confirm fit before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is aimed at trailer owners and small shops performing routine suspension maintenance who want a drop-in replacement for SW4B style springs. It is particularly useful for single-axle trailers up to 3,500 lb where matching leaf length and capacity matters.\u003c\/p\u003e\n\u003cp\u003eThose who need precision-built, symmetrical springs for high-end trailers or who require guaranteed perfect hardware fitment may want to consider higher-tier aftermarket options; several users reported mixed build consistency and occasional missing or damaged hardware during installation.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes a full hanger and U-bolt kit, simplifying a single axle replacement job.\u003c\/li\u003e\n\u003cli\u003eGood value for money, delivering the required 1,750 lb per spring capacity.\u003c\/li\u003e\n\u003cli\u003eAnti-rust coating and solid raw material choice improve expected durability.\u003c\/li\u003e\n\u003cli\u003eMost buyers report good fit and straightforward installation for common trailer axles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users noted inconsistent build quality and non-symmetrical leaves on occasion.\u003c\/li\u003e\n\u003cli\u003eA few reports of missing or stripped hardware mean installers should verify all parts before beginning work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity per spring\u003c\/td\u003e\n\u003ctd\u003e1,750 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCombined axle capacity\u003c\/td\u003e\n\u003ctd\u003e3,500 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye-to-eye length\u003c\/td\u003e\n\u003ctd\u003e25-1\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFree open\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeaf width\u003c\/td\u003e\n\u003ctd\u003e1-3\/4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeaf thickness\u003c\/td\u003e\n\u003ctd\u003e5\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded hardware\u003c\/td\u003e\n\u003ctd\u003eU-bolts, tie plates, hangers, shackle straps, bolts and nuts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe AEagle 4 Leaf 1750lb Double Eye Spring Kit is a cost-conscious, functional replacement for trailers needing SW4B-compatible springs. It provides correct load capacity, most required hardware, and an anti-rust finish, making it good value for DIYers and shops. Buyers should inspect included fasteners before installation and accept that cosmetic and symmetry variations may occur on some units.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill these springs fit my 3,500 lb trailer axle?\u003c\/strong\u003e\u003cbr\u003eThey are rated at 1,750 lb per spring for a combined 3,500 lb axle capacity and list a 25-1\/4 in eye-to-eye length; confirm those dimensions with your trailer before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include U-bolts and hangers?\u003c\/strong\u003e\u003cbr\u003eYes, the package includes 4 U-bolts, tie plates, hangers, shackle straps and required nuts and bolts for a single axle installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre replacement bushings included?\u003c\/strong\u003e\u003cbr\u003eEach spring has two installed bushings of 9\/16 in diameter, so no separate bushings are required for initial installation.\u003c\/p\u003e","brand":"AEagle","offers":[{"title":"Default Title","offer_id":48192697106651,"sku":"B0C1YYYXLQ","price":106.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61t3vJQy1sL._AC_SL1500.jpg?v=1769795098","url":"https:\/\/gearmusthave.com\/products\/aeagle-4-leaf-1750lb-double-eye-spring-kit-trailer-suspension","provider":"GearMustHave","version":"1.0","type":"link"}