{"product_id":"4-inch-lift-kit-w-radius-arm-ram-2500-19-24-4wd-diesel-fox-2-5-performance-elite-shocks","title":"BDS 4-Inch Radius Arm Lift Kit | FOX 2.5 Performance Elite | Ram 2500 4WD Diesel 2019-2026","description":"\u003ch2\u003eBDS 4-Inch Radius Arm Lift Kit | FOX 2.5 Performance Elite | Ram 2500 4WD Diesel 2019–2026 | SKU: 1660FPE\u003c\/h2\u003e\n\u003cp\u003eThe BDS 4-Inch Radius Arm Lift Kit is a complete front lift system for 2019–2026 Ram 2500 4WD diesel, paired with \u003cstrong\u003eFOX 2.5 Performance Elite external reservoir shocks\u003c\/strong\u003e. Heavy-duty BDS-engineered radius arms replace the factory arms — correcting caster, reducing bushing bind, and maintaining consistent suspension geometry at 4-inch lift height. Diesel-tuned coil springs are engineered for the Ram 2500 diesel’s front-end weight distribution. For the same kit with FOX 2.0 shocks, order SKU 1660FS.\u003c\/p\u003e\n\n\u003ch2\u003eVerified Fitment (OFAS Standard)\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRam 2500 4WD Diesel:\u003c\/strong\u003e 2019–2026\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes NOT fit:\u003c\/strong\u003e Ram 2500 gas — order SKU 1699FPE for 2019–2026 Ram 2500 4WD gas FOX 2.5 PE. Does not fit Ram 2500 2WD. Does not fit Ram 2500 2018 or earlier — order SKU 1762FPE for 2014–2018 Ram 2500 4WD diesel. Does not fit Ram 3500 or Ram 1500.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 1660FPE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e BDS Suspension\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLift Height:\u003c\/strong\u003e 4 inches (front)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuspension Type:\u003c\/strong\u003e Radius arm upgrade — heavy-duty BDS arms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShocks:\u003c\/strong\u003e FOX 2.5 Performance Elite — external reservoir, diesel-tuned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Ram 2500 4WD Diesel 2019–2026\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e BDS No-Fine-Print Warranty + FOX 1-year limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eShock Tier Selection — 2019–2026 Ram 2500 Diesel 4-Inch\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFOX 2.5 Performance Elite (SKU 1660FPE — this listing):\u003c\/strong\u003e External reservoir, advanced valving — premium shock tier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFOX 2.0 Performance Series (SKU 1660FS):\u003c\/strong\u003e Standard shock tier — lower price point\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRadius Arm Upgrade — Why It Matters\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty BDS radius arms:\u003c\/strong\u003e Engineered for 4-inch lift height and larger tires on the diesel platform\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaster correction:\u003c\/strong\u003e Maintains proper caster angle at 4-inch lift\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced bushing bind:\u003c\/strong\u003e Improved arm geometry reduces bind under articulation and load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack bar correction:\u003c\/strong\u003e Maintains proper axle centering at lifted height\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy-duty BDS radius arms — pair\u003c\/li\u003e\n\u003cli\u003eDiesel-tuned front coil springs\u003c\/li\u003e\n\u003cli\u003eFOX 2.5 Performance Elite shocks with external reservoirs\u003c\/li\u003e\n\u003cli\u003eTrack bar correction bracket\u003c\/li\u003e\n\u003cli\u003eAll required installation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional installation required:\u003c\/strong\u003e Radius arm lift on a diesel platform requires a qualified suspension shop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlignment mandatory:\u003c\/strong\u003e Full front-end alignment required after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriveline inspection:\u003c\/strong\u003e Inspect driveshaft angles and U-joint operating angles after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal reservoir routing:\u003c\/strong\u003e Follow BDS and FOX instructions for reservoir placement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque specs:\u003c\/strong\u003e Torque all fasteners to BDS specification per included installation instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Warning\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eApplication-specific. Confirm 2019–2026 Ram 2500 4WD diesel before ordering. Does NOT fit gas — order SKU 1699FPE. Does not fit 2WD or 2018 and earlier Ram 2500. Does not fit Ram 3500. This product is non-returnable once installed.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cblockquote\u003e\u003cp\u003e\u003cstrong\u003eEngineering Question?\u003c\/strong\u003e Submit your Year \/ Make \/ Model \/ engine \/ drivetrain via the contact form and an OFAS fitment specialist will respond with a verified recommendation.\u003c\/p\u003e\u003c\/blockquote\u003e","brand":"BDS Suspension","offers":[{"title":"Default Title","offer_id":51395819929921,"sku":"1660FPE","price":5726.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/BDS1660FPE.webp?v=1771175434","url":"https:\/\/obsidianforgedautosupply.com\/products\/4-inch-lift-kit-w-radius-arm-ram-2500-19-24-4wd-diesel-fox-2-5-performance-elite-shocks","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}