{"product_id":"gertrdti-fr350sdj-rear-axle-helper-springs-kit-for-ford-f-350-2017-2026-pair-progressive-rubber","title":"Gertrdti FR350SDJ Rear Axle Helper Springs Kit for Ford F-350 (2017–2026) — Pair, Progressive Rubber","description":"\u003cp\u003e\u003cstrong\u003eGertrdti FR350SDJ Rear Axle Helper Springs Kit replaces factory helper springs to restore ride height, minimize rear sag, and stabilize load handling for Ford F-350 Super Duty trucks (2017–2026).\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen you routinely carry heavy payloads or tow with your Ford F-350, factory rear suspension can compress uncomfortably and reduce control. The Gertrdti FR350SDJ kit offers a plug-and-play pair of closed-cell rubber helper springs engineered to match OEM dimensions for an accurate fit on both 2WD and 4WD F-350 models from 2017 through 2026. These springs are sold as left and right pairs, require no air systems or special tools for installation, and are designed to work progressively as load increases—reducing squat, sway, and body roll without adding maintenance tasks.\u003c\/p\u003e\n\n\u003ch3\u003eHow will these springs change towing and heavy-load performance?\u003c\/h3\u003e\n\n\u003cp\u003eThe FR350SDJ helper springs increase the effective rear load capacity and provide progressive resistance as weight is added. That means the truck maintains a more level stance under load, improving trailer alignment and reducing stress on the factory suspension.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated capacity designed to support heavy payloads and reduce rear-end sag\u003c\/li\u003e\n  \u003cli\u003eProgressive rubber construction that stiffens as load grows\u003c\/li\u003e\n  \u003cli\u003eImproved towing stability with reduced trailer sway tendency\u003c\/li\u003e\n  \u003cli\u003eBetter braking performance with a more level vehicle posture\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these Gertrdti springs easy to install for a DIYer?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the kit is engineered for straightforward installation without compressors, air lines, or specialized tools. The springs match OEM geometries so they bolt in place; the process is typically quick and can be completed in under 30 minutes by someone comfortable working under the truck.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSold as a matched left and right set for correct positioning\u003c\/li\u003e\n  \u003cli\u003eNo drilling or frame modification required for compatible models\u003c\/li\u003e\n  \u003cli\u003eIf the supplied bolt size isn’t right, replacement hardware is available upon request\u003c\/li\u003e\n  \u003cli\u003eLow- or no-maintenance operation once installed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat safety and handling benefits should I expect on the road?\u003c\/h3\u003e\n\n\u003cp\u003eBy reducing rear sag and stabilizing the chassis, the FR350SDJ kit helps keep steering and braking responses more consistent under load. Drivers will notice reduced body roll in corners, fewer instabilities during crosswinds, and improved directional control when accelerating or braking while towing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReduced body roll for more confident cornering\u003c\/li\u003e\n  \u003cli\u003eImproved straight-line stability in heavy crosswinds\u003c\/li\u003e\n  \u003cli\u003eEnhanced traction and braking balance under load\u003c\/li\u003e\n  \u003cli\u003eConsistent ride behavior whether empty or carrying weight\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these springs fit my specific F-350 model year and drivetrain?\u003c\/h3\u003e\n\n\u003cp\u003eThe FR350SDJ is tailored for Ford F-350 Super Duty trucks built between 2017 and 2026 and is compatible with both 2WD and 4WD configurations. They follow OEM dimensions to ensure a direct fit, but contact the seller if you have unusual aftermarket suspension or if bolt sizes in the kit do not match your truck—replacement fasteners can be provided.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with 2017–2026 Ford F-350 Super Duty models\u003c\/li\u003e\n  \u003cli\u003eDesigned for both two-wheel and four-wheel drive variants\u003c\/li\u003e\n  \u003cli\u003eSold as a left\/right pair for proper axle support\u003c\/li\u003e\n  \u003cli\u003eCustomer service available for installation issues or parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Gertrdti FR350SDJ Rear Axle Helper Springs Kit is aimed at F-350 owners who carry heavy loads, tow frequently, or want to restore factory ride height and control under load without adding complex equipment. It’s a practical choice for fleet vehicles, contractors, recreational truck owners, and anyone seeking a durable, maintenance-free helper spring solution that installs quickly and improves on-road confidence.\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: Do these helper springs fit my 2020 Ford F-350 4WD?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Gertrdti FR350SDJ is compatible with 2017–2026 Ford F-350 models and works with both 2WD and 4WD drivetrains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will I need special tools or maintenance after installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No special tools or maintenance are required; installation is straightforward and the springs are designed for long-term, maintenance-free use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Gertrdti","offers":[{"title":"Default Title","offer_id":55170865627479,"sku":"B0FR46NQWG","price":144.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/gertrdti-fr350sdj-front-packaging.jpg?v=1790434896","url":"https:\/\/britishgarage.co.uk\/products\/gertrdti-fr350sdj-rear-axle-helper-springs-kit-for-ford-f-350-2017-2026-pair-progressive-rubber","provider":"British Garage","version":"1.0","type":"link"}