{"product_id":"lonffery-trailer-axle-spring-perch-seats-4-pack-for-3-inch-round-axles-weld-on-heavy-duty","title":"Lonffery Trailer Axle Spring Perch Seats 4-Pack for 3-inch Round Axles — Weld-on Heavy-Duty","description":"\u003cp\u003e\u003cstrong\u003eLonffery 4-Pack Trailer Axle Spring Perch Seats are a weld-on, heavy‑duty kit made for 3\" round axles that secures leaf springs and restores proper spring alignment for one axle.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you need a reliable replacement or upgrade for trailer spring perches, this four-piece Lonffery kit gives you the exact hardware to mount leaf springs to a 3\" round trailer axle. Built from high-strength steel and sized to common trailer dimensions, the perches make it straightforward to return your trailer to safe towing geometry when welded in place by a qualified technician.\u003c\/p\u003e\n\n\u003ch3\u003eHow will these perch seats fit my trailer axle?\u003c\/h3\u003e\n\u003cp\u003eEach perch is engineered specifically for 3\" round axles and matches common spring and bolt dimensions so you can replace worn or missing perches without fabrication. The curved base sits flush against a 3\" diameter tube, and the center hole accepts standard spring center bolts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 3\" round trailer axles (curved base diameter: 3\").\u003c\/li\u003e\n  \u003cli\u003ePerch length: 4\", width: 1.85\", hole diameter: 0.67\".\u003c\/li\u003e\n  \u003cli\u003eFour pieces included — enough for one full axle (two per side).\u003c\/li\u003e\n  \u003cli\u003eWeld-on mounting for permanent, secure attachment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and strength features do these perches offer?\u003c\/h3\u003e\n\u003cp\u003eLonffery perches are formed from heavy-duty steel to resist deformation under load and provide a durable bearing surface for leaf springs. The steel construction helps maintain spring alignment and reduces movement that can accelerate wear on springs, U-bolts, or the axle tube.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-strength steel construction for long service life.\u003c\/li\u003e\n  \u003cli\u003ePrecision-formed shape to distribute load across the axle tube.\u003c\/li\u003e\n  \u003cli\u003eWeld-ready edges and consistent hole sizing for reliable installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what tools are required?\u003c\/h3\u003e\n\u003cp\u003eInstallation is intended as a weld-on job for someone with welding experience or access to a qualified welder. Proper fit-up and a continuous weld around the perimeter produce the best long-term result; tack-welding before final welding helps ensure correct alignment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWeld-on installation — requires MIG, stick, or TIG welding capability.\u003c\/li\u003e\n  \u003cli\u003eRecommend cleaning axle surface, test-fitting, and tack-welding first.\u003c\/li\u003e\n  \u003cli\u003eMay require grinding, primer, and corrosion protection after welding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these work for the trailers and loads I tow?\u003c\/h3\u003e\n\u003cp\u003eThese perches are suitable for medium-duty cargo trailers, flatbeds, and small farm trailers with 3\" axles. They restore spring-to-axle interface integrity but should be used with correctly rated springs, U-bolts, bearings, and other suspension components sized for your trailer’s load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBest for medium-duty trailer applications and small farm trailers.\u003c\/li\u003e\n  \u003cli\u003eNot a substitute for under-rated springs or damaged axle tubes — inspect surrounding parts.\u003c\/li\u003e\n  \u003cli\u003eSold as a 4-piece set — replaces perches for a single axle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Lonffery 4-Pack Trailer Axle Spring Perch Seats suit DIY mechanics, mobile welders, trailer repair shops, and owners of medium-duty trailers who need an accurate, heavy-duty weld-on perch solution for 3\" round axles. If you want to restore proper spring alignment and a secure mount for leaf springs with easy-to-measure dimensions and a full four-piece kit, this product delivers the core hardware needed for a professional repair or upgrade.\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: Are these perches compatible with 2.5\" axles?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. These Lonffery perches are sized for 3\" round axles and will not seat correctly on 2.5\" tubes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include installation hardware?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The kit includes four weld-on perches only; spring bolts, U-bolts, and welding materials are not included.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Lonffery","offers":[{"title":"Default Title","offer_id":48087008411806,"sku":"B0FJBJDSNM","price":30.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/lonffery-front-packaging.jpg?v=1785913343","url":"https:\/\/northtrailauto.ca\/products\/lonffery-trailer-axle-spring-perch-seats-4-pack-for-3-inch-round-axles-weld-on-heavy-duty","provider":"North Trail Auto","version":"1.0","type":"link"}