{"product_id":"lonffery-trailer-shackle-strap-kit-312l-4-pack-4-3-8-x-1-1-4-with-eq-e1-bushings-bolts-for-3-500-7-200-lb-trailers","title":"Lonffery Trailer Shackle Strap Kit 312L — 4-Pack 4-3\/8\" x 1-1\/4\" with EQ-E1 Bushings \u0026 Bolts, for 3,500–7,200 lb Trailers","description":"\u003cp\u003e\u003cstrong\u003eLonffery Trailer Alex Shackle Kit 312L is a complete four-shackle set with bushings and hardware designed to replace or upgrade the double-eye leaf spring mounting on trailers rated roughly 3,500–7,200 lb.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis Lonffery kit supplies the common replacement parts needed to restore or improve a trailer’s suspension link points: four 312L shackle straps, EQ-E1 bushings to cushion movement, and six 9\/16\" bolts with matching nuts. The components are sized and packaged for fast installation on many light- to medium-duty utility, boat, and cargo trailers. The kit focuses on durability and fit: each shackle strap measures 4-3\/8\" long by 1-1\/4\" wide and is specified to work with standard double-eye leaf spring setups.\u003c\/p\u003e\n\n\u003ch3\u003eWhat exactly is included in the Lonffery 312L shackle strap kit?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit ships with every part required to replace the most common shackle strap assemblies on trailers with double-eye leaf springs. It groups the straps, bushings, and fasteners so you don’t have to source separate components.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFour 312L shackle straps (4-3\/8\" long x 1-1\/4\" wide).\u003c\/li\u003e\n  \u003cli\u003eFour EQ-E1 rubber or polyurethane bushings to reduce metal-on-metal wear.\u003c\/li\u003e\n  \u003cli\u003eSix 9\/16\" bolts plus matching nuts to secure the straps and spring assembly.\u003c\/li\u003e\n  \u003cli\u003ePackaged to fit trailers commonly rated between 3,500 lb and 7,200 lb axles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this kit simplify trailer suspension maintenance?\u003c\/h3\u003e\n\n\u003cp\u003eBy providing matched straps, bushings, and hardware in one package, the Lonffery kit removes the guesswork of compatibility and reduces time spent shopping for parts. The pre-selected dimensions and included bushings mean installers can quickly swap worn components and restore proper spring movement.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAll parts arrive together to minimize downtime during repairs.\u003c\/li\u003e\n  \u003cli\u003eStandardized strap size suits common double-eye leaf spring setups.\u003c\/li\u003e\n  \u003cli\u003eIncluded bushings protect against vibration and wear.\u003c\/li\u003e\n  \u003cli\u003eExtra fasteners allow for secure reassembly and replacement of corroded hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these shackle straps fit my trailer and axle weight?\u003c\/h3\u003e\n\n\u003cp\u003eThe 312L shackle straps in this kit are engineered to match typical double-eye leaf spring spacing and fit many light- and medium-duty trailers. They are commonly used on setups with axles rated between about 3,500 and 7,200 pounds, but you should confirm measurements and rating compatibility before installation.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eStrap length: 4-3\/8\" — confirm against your existing strap length.\u003c\/li\u003e\n  \u003cli\u003eStrap width: 1-1\/4\" — matches common leaf spring eye widths.\u003c\/li\u003e\n  \u003cli\u003eIntended axle ratings: typically 3,500–7,200 lb; verify with your trailer specs.\u003c\/li\u003e\n  \u003cli\u003eIncludes six bolts to ensure secure mounting; replace any bent or corroded fasteners.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow straightforward is installation for a DIYer or shop technician?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is designed to be straightforward: remove the old straps and bushings, position the new straps with EQ-E1 bushings, and tighten the provided 9\/16\" bolts and nuts to the manufacturer’s torque specs. Basic hand tools and a jack or lift for safety are usually sufficient for a single-axle trailer repair.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRemove old hardware and clean mounting surfaces before fitting new parts.\u003c\/li\u003e\n  \u003cli\u003eUse supplied bolts and nuts; torque to the trailer manufacturer’s specification.\u003c\/li\u003e\n  \u003cli\u003eReplace one side at a time to keep alignment and ride height consistent.\u003c\/li\u003e\n  \u003cli\u003eInspect springs and eye bolts while performing the replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Lonffery Trailer Alex Shackle Kit 312L is aimed at trailer owners, fleet managers, and mobile repair shops who need a reliable, ready-packaged replacement for worn or damaged shackle straps on light- to medium-duty trailers. It’s well-suited for DIY mechanics familiar with trailer suspension work and professionals who want to keep a service-ready kit on hand for quick repairs.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the Lonffery 312L kit include bushings and bolts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit includes four EQ-E1 bushings and six 9\/16\" bolts with nuts along with four 312L shackle straps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What trailer axle weights typically fit this shackle kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This kit is typically compatible with trailers using axles rated about 3,500 lb to 7,200 lb; confirm with your trailer specifications.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Lonffery","offers":[{"title":"Default Title","offer_id":48085546434718,"sku":"B0C3VS5GM3","price":40.84,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/lonffery-front-packaging-lonffery-312l-shackle-kit.jpg?v=1785872581","url":"https:\/\/northtrailauto.ca\/products\/lonffery-trailer-shackle-strap-kit-312l-4-pack-4-3-8-x-1-1-4-with-eq-e1-bushings-bolts-for-3-500-7-200-lb-trailers","provider":"North Trail Auto","version":"1.0","type":"link"}