{"product_id":"dynofit-2in-rear-lowering-shackles-for-1999-2019-silverado-1500-sierra-1500-tig-welded-steel-polyurethane-bushings-1-2in-dro","title":"dynofit 2in Rear Lowering Shackles for 1999–2019 Silverado 1500 \u0026 Sierra 1500 — TIG-welded steel, polyurethane bushings, 1–2in dro","description":"\u003cp\u003e\u003cstrong\u003eDynofit 2\" rear drop shackles lower compatible 1999–2019 Chevy Silverado 1500 and GMC Sierra 1500 trucks by approximately 1–2 inches to improve stance and balance while retaining factory mounting points.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese rear lowering shackles are a bolt-on aftermarket solution designed for 6-lug Silverado and Sierra 1500 models from 1999 through 2019, in both 2WD and 4WD configurations. Built with TIG-welded steel, durable black powder-coating and replaceable polyurethane bushings, the kit aims to offer a stronger, longer-lasting alternative to stock shackles. The package includes two rear lowering shackles and two grease zerks; part number 410520 matches common replacement listings.\u003c\/p\u003e\n\n\u003ch3\u003eHow much rear drop can I expect with these Dynofit shackles?\u003c\/h3\u003e\n\u003cp\u003eInstalled as intended, the shackles provide an approximate 1 to 2 inch lowering of the rear ride height. Actual drop varies by year, suspension condition and load; different Silverado model years may mount in different orientations, affecting final height.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical rear drop range: 1–2 inches\u003c\/li\u003e\n  \u003cli\u003eFitment varies by year and axle configuration\u003c\/li\u003e\n  \u003cli\u003eFinal ride height influenced by springs, tires and payload\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and construction make these shackles durable?\u003c\/h3\u003e\n\u003cp\u003eDynofit uses heavy-gauge steel with TIG welding for reinforcement, then applies a black powder coat to reduce corrosion. The bushings are polyurethane for improved wear resistance and quieter operation compared with bare metal mounts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTIG-welded steel for stronger seams than typical MIG-welded parts\u003c\/li\u003e\n  \u003cli\u003eBlack powder coat finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eReplaceable polyurethane bushings to reduce noise and extend life\u003c\/li\u003e\n  \u003cli\u003eTapped holes for grease zerks to keep lubrication secure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what comes in the box?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward and clamps into the existing suspension mounts — no welding required. Installers should fit the included grease fittings before mounting the shackles, then add grease to the bushings to avoid squeaks and ensure smooth operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes: 2 rear lowering shackles and 2 grease zerks\u003c\/li\u003e\n  \u003cli\u003eBolt-on installation; no welding needed\u003c\/li\u003e\n  \u003cli\u003eInstall grease fittings and lubricate before mounting\u003c\/li\u003e\n  \u003cli\u003eBe aware of different mounting directions across model years\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these affect ride quality or handling?\u003c\/h3\u003e\n\u003cp\u003eLowering the rear can reduce the truck’s center of gravity and balance the stance, which some owners find improves cornering feel and reduces nose-up attitude under load. Changes are subtle and depend on other suspension components and cargo weight.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCan level truck stance and reduce rear sag under load\u003c\/li\u003e\n  \u003cli\u003eMay slightly change handling characteristics—test drive after installation\u003c\/li\u003e\n  \u003cli\u003eCompatible with factory springs; check alignment after fitting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Dynofit 2\" rear drop shackles are intended for owners of 1999–2019 Chevy Silverado 1500 and GMC Sierra 1500 (6-lug) who want a durable, bolt-on way to lower the rear 1–2 inches and improve stance without major suspension modifications. These are well suited to DIY installers, professional mechanics, and truck owners wanting replaceable polyurethane bushings, corrosion-resistant finish, and reinforced welding for longer service life. Replacement part number: 410520. For fitment questions, verify your model year, axle type and lug configuration before purchase.\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: Will these shackles fit my 2010 Silverado 1500 6-lug?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they fit 1999–2019 Silverado 1500 6-lug models in both 2WD and 4WD, but verify your year’s mounting direction before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to weld these shackles to install?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No welding is required; they bolt on. Install grease fittings and add lubricant before mounting to prevent squeaks.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"dynofit","offers":[{"title":"Default Title","offer_id":67587590652089,"sku":"B0D8HS88GL","price":102.59,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/dynofit-front-packaging-shackles.jpg?v=1790514077","url":"https:\/\/redleafauto.ca\/products\/dynofit-2in-rear-lowering-shackles-for-1999-2019-silverado-1500-sierra-1500-tig-welded-steel-polyurethane-bushings-1-2in-dro","provider":"Redleaf Auto","version":"1.0","type":"link"}