{"product_id":"mardarth-rear-leaf-spring-bracket-kit-for-silverado-sierra-1500-1999-2015-direct-fit-oe-geometry-heavy-duty","title":"Mardarth Rear Leaf Spring Bracket Kit for Silverado\/Sierra 1500 (1999–2015) — Direct-fit OE geometry, Heavy-duty","description":"\u003cp\u003e\u003cstrong\u003eMardarth's 12474021 rear leaf spring bracket kit is a direct-fit replacement hanger and shackle set engineered to restore proper rear suspension alignment on 1999–2015 Silverado and Sierra 1500 trucks.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your truck's rear leaf spring mounts are worn, cracked, or bent, this bracket kit provides a straightforward way to renew the suspension connection points without custom fabrication. The kit is manufactured from durable materials to match OE mounting geometry and includes parts that replace 12474021, 722032, M22421, and 338-2163. It fits a broad range of GM models from 1999 through 2015, including select Escalade, Avalanche, Suburban, Tahoe, and Yukon applications noted for compatibility between 2007–2009.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this bracket kit affect my truck's rear suspension performance?\u003c\/h3\u003e\n\u003cp\u003eInstalling the Mardarth bracket kit re-establishes the original mounting locations and movement of the leaf springs, which helps maintain proper ride height and handling balance. It reduces unwanted play at the connection point and keeps suspension components aligned under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-replacement hangers and shackles that match factory geometry for predictable handling\u003c\/li\u003e\n  \u003cli\u003eHigh-strength materials resist bending and wear under towing or hauling\u003c\/li\u003e\n  \u003cli\u003eReduces noise and movement caused by degraded mounts\u003c\/li\u003e\n  \u003cli\u003eRestores correct spring positioning to improve tire contact and stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this kit fit my Silverado\/Sierra 1500 or other GM trucks?\u003c\/h3\u003e\n\u003cp\u003eThe kit is designed for 1999–2015 Chevrolet Silverado and GMC Sierra 1500 models and lists cross-compatibility with specific GM full-size SUVs from 2007–2009. Check your vehicle's year and part interchange numbers to confirm a match before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for part numbers 12474021, 722032, M22421, 338-2163\u003c\/li\u003e\n  \u003cli\u003eFits 1999–2015 Silverado and Sierra 1500 pickup trucks\u003c\/li\u003e\n  \u003cli\u003eCompatible with 2007–2009 Escalade, Avalanche, Suburban, Tahoe, Yukon where applicable\u003c\/li\u003e\n  \u003cli\u003eDesigned to follow factory mounting points—minimal modifications expected\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does installation involve, and can I do it myself?\u003c\/h3\u003e\n\u003cp\u003eInstallation is intended to be straightforward because the parts are direct replacements that align with factory holes and mounting surfaces. Basic mechanical skills and common tools are usually enough, though rusted bolts or weld-on applications may require cutting, penetrating oil, or professional assistance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit components save time versus custom-fabricated hangers\u003c\/li\u003e\n  \u003cli\u003eTypical tools: socket set, torque wrench, penetrating oil, jack and stands\u003c\/li\u003e\n  \u003cli\u003eMay require bolt removal or minor rust cleanup on older vehicles\u003c\/li\u003e\n  \u003cli\u003eIf welding or frame repair is needed, consult a professional installer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and support come with the Mardarth bracket kit?\u003c\/h3\u003e\n\u003cp\u003eThe kit includes a 1-year guarantee and Mardarth customer support for fitment or quality questions. If you encounter a defect or installation issue within the warranty period, reach out for assistance and replacement guidance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1-year guarantee covering manufacturing defects\u003c\/li\u003e\n  \u003cli\u003eCustomer service available to help resolve fitment or quality concerns\u003c\/li\u003e\n  \u003cli\u003eReplacement item guidance if parts arrive damaged or non-conforming\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This bracket kit is suited to owners of 1999–2015 Chevrolet Silverado and GMC Sierra 1500 trucks—and those with the compatible GM SUVs—who need a practical, cost-effective repair to restore rear leaf spring mounting integrity. It’s ideal for DIY mechanics with basic tools, fleet maintenance shops replacing worn hangers at service intervals, and anyone preparing a truck for safe towing or resumed heavy use.\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 this kit replace part number 12474021?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Mardarth kit is a direct replacement for 12474021 and equivalent numbers listed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is professional installation required?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Not always; basic mechanical skills usually suffice, but rusted fasteners or welding needs may require a shop.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Mardarth","offers":[{"title":"Default Title","offer_id":55167300600151,"sku":"B09JMSRDX4","price":68.27,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/mardarth-rear-leaf-spring-bracket-front-packaging.jpg?v=1790382186","url":"https:\/\/britishgarage.co.uk\/products\/mardarth-rear-leaf-spring-bracket-kit-for-silverado-sierra-1500-1999-2015-direct-fit-oe-geometry-heavy-duty","provider":"British Garage","version":"1.0","type":"link"}