{"product_id":"cognito-sm-series-ldg-traction-bar-kit-ford-f250-f350-super-duty-120-90582","title":"Cognito SM Series LDG Traction Bar Kit | 2017-2025 Ford F-250\/F-350 Super Duty 4WD","description":"\u003ch2\u003eThe Obsidian Vision\u003c\/h2\u003e\u003cp\u003eOn a lifted 2017–2025 Ford F-250 or F-350 Super Duty 4WD, rear axle wrap is a torque management problem that the factory leaf spring pack was never engineered to solve at elevated ride heights — and the consequences manifest as wheel hop under hard acceleration, driveline vibration under tow load, and the progressive degradation of u-joint and driveshaft integrity that follows. The Cognito SM Series Limited Dynamic Geometry (LDG) Traction Bar Kit resolves that problem with a USA-made, heavy-duty boxed sheet-metal traction bar system engineered to resist axle wrap across 0–4.5 inches of rear lift without restricting suspension travel through the full droop and compression arc. Precision adjustability through the LDG design allows the owner to set traction bar preload quickly and accurately for any lift height within the operating range, delivering a system that holds driveline geometry under the sustained torque loads of a Power Stroke diesel or Godzilla V8 towing at maximum capacity — with the Cognito signature design and semi-gloss black powder coat finish that set it apart from every bracket-and-rod solution on the market.\u003c\/p\u003e\u003ch3\u003eConcierge Fitment Guarantee\u003c\/h3\u003e\u003cp\u003eEvery order is manually reviewed by our technicians to ensure 100% compatibility with your build before we ship.\u003c\/p\u003e\u003ch3\u003eEngineering Breakdown\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates\u003c\/strong\u003e rear axle wrap and driveline torque steer on lifted 2017–2025 F-250\/F-350 Super Duty 4WD SRW applications by transferring axle torque reaction loads into the frame through a rigid boxed sheet-metal bar geometry, preventing the axle rotation that causes wheel hop under hard acceleration and towing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintains\u003c\/strong\u003e full, unrestricted suspension travel across 0–4.5 inches of rear lift via the Limited Dynamic Geometry design, which allows the traction bar to articulate with the axle through its complete droop and compression arc without binding or limiting shock absorber travel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProvides\u003c\/strong\u003e precise, tool-accessible preload adjustability, enabling quick and accurate traction bar setup for any lift height within the 0–4.5 inch operating range without disassembling the system — critical for Super Duty owners who vary payload and tow configurations regularly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCognito's SM Series construction uses heavy-duty boxed sheet-metal stampings — the same fabrication approach applied across Cognito's Super Duty suspension lineup — providing the torsional rigidity required to resist the high torque reaction loads generated by 6.7L Power Stroke diesel and 7.3L Godzilla V8 powertrains under maximum tow rating and hard acceleration without the flex or fatigue that affects lighter tubular or stamped bracket designs. The LDG pivot geometry allows the bar to follow the axle's natural arc through the full suspension travel range without inducing bind, maintaining the anti-wrap function at every point in the travel arc rather than only at static ride height — a critical distinction on a heavy-duty platform where suspension compliance under load directly affects towing stability, tire contact patch, and long-term driveline component integrity. All components are powder coated semi-gloss black and manufactured in the USA. At 91 lbs, this kit ships via LTL freight carrier with residential delivery included. Limited Lifetime Warranty.\u003c\/p\u003e\u003ch3\u003eAudit Table\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003eMaterials\u003c\/th\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003cth\u003eIncluded Components\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e120-90582\u003c\/td\u003e\n\u003ctd\u003eSM Series LDG Traction Bar Kit — Pair; 0–4.5\" rear lift range; SRW only\u003c\/td\u003e\n\u003ctd\u003eBoxed sheet-metal construction; semi-gloss black powder coat; USA-manufactured\u003c\/td\u003e\n\u003ctd\u003e91 lbs\u003c\/td\u003e\n\u003ctd\u003eSM Series traction bars (pair), frame mounting brackets, axle mounting brackets, adjuster hardware, all installation hardware\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eVerified Fitment (OFAS Standard)\u003c\/h3\u003e\u003cp\u003e✅ \u003cstrong\u003eCONFIRMED — Ford F-250 Super Duty 4WD SRW:\u003c\/strong\u003e\u003cbr\u003e2017–2025 Ford F-250 Super Duty XL, XLT, Lariat, King Ranch, Platinum 4WD\u003cbr\u003e2018–2025 Ford F-250 Super Duty Limited 4WD\u003cbr\u003e2020–2025 Ford F-250 Super Duty XLT Tremor, Lariat Tremor, King Ranch Tremor, Platinum Tremor 4WD\u003c\/p\u003e\u003cp\u003e✅ \u003cstrong\u003eCONFIRMED — Ford F-350 Super Duty 4WD SRW:\u003c\/strong\u003e\u003cbr\u003e2017–2025 Ford F-350 Super Duty XL, XLT, Lariat, King Ranch, Platinum 4WD SRW\u003cbr\u003e2018–2025 Ford F-350 Super Duty Limited 4WD SRW\u003cbr\u003e2020–2022 Ford F-350 Super Duty XL Plus 4WD SRW\u003cbr\u003e2020–2025 Ford F-350 Super Duty XLT Tremor, Lariat Tremor, King Ranch Tremor, Platinum Tremor 4WD SRW\u003c\/p\u003e\u003cp\u003e❌ \u003cstrong\u003eREQUIREMENTS:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e⚠️ F-350 Dually (DRW) Not Compatible:\u003c\/strong\u003e This kit is designed for Single Rear Wheel (SRW) configurations only. F-350 Dual Rear Wheel (Dually\/DRW) models have a different rear axle housing width and mounting geometry and require a separate application-specific kit.\u003cbr\u003eRequires 4WD drivetrain — 2WD F-250\/F-350 Super Duty models have a different rear suspension geometry and are not compatible with this kit.\u003cbr\u003eDesigned for 0–4.5 inches of rear lift — verify rear lift height is within this range before ordering.\u003cbr\u003eRequires rear pinion angle check post-installation to confirm driveline u-joint operating angles are within Ford's specification for the installed lift height.\u003c\/p\u003e\u003ch3\u003eInstallation \u0026amp; Technical Notes\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEstimated Install Time:\u003c\/strong\u003e 3-Hour DIY Install (with basic lift equipment, hand tools, and torque wrench)\u003cbr\u003e\u003cstrong\u003eAlignment Required:\u003c\/strong\u003e Pinion angle check required post-installation — verify driveline u-joint operating angles are within Ford's specification for the installed rear lift height to prevent vibration and accelerated u-joint and driveshaft wear under tow load.\u003cbr\u003e\u003cstrong\u003eTorque Specifications:\u003c\/strong\u003e Refer to Cognito's included instruction sheet for all mounting hardware torque values — torque all fasteners with the suspension at ride height under load.\u003cbr\u003e\u003cstrong\u003eAdjuster Setup:\u003c\/strong\u003e Set traction bar preload with the vehicle at ride height and the rear suspension loaded to approximate operating weight (including any added ballast or payload). Adjust until light preload is achieved, then verify full suspension travel is unrestricted before final torque.\u003cbr\u003e\u003cstrong\u003eTowing Note:\u003c\/strong\u003e For Super Duty owners who regularly vary between loaded and unloaded configurations, verify traction bar preload is set for the most common operating load condition. Significant payload changes may warrant a preload re-check.\u003cbr\u003e\u003cstrong\u003eShipping Notice:\u003c\/strong\u003e At 91 lbs, this kit ships via LTL freight carrier. Residential delivery is included. A delivery appointment will be scheduled by the carrier — ensure someone is available to receive the shipment.\u003c\/p\u003e\u003ch3\u003eWheel \u0026amp; Tire Fitment\u003c\/h3\u003e\u003cp\u003eTraction bar fitment is independent of wheel and tire selection on the 2017–2025 F-250\/F-350 Super Duty SRW platform. This kit supports rear lift heights of 0–4.5 inches — verify that your wheel backspacing and tire diameter are compatible with your specific rear lift height and any fender modifications already completed on your build. Per OFAS fitment protocol, 8x170mm bolt pattern (F-250\/F-350 SRW) is confirmed; 8x200mm (F-350 DRW) is not compatible with this kit.\u003c\/p\u003e\u003cblockquote\u003e\u003cp\u003eOur team is standing by to verify your specific drivetrain configuration (SRW vs. DRW), rear lift height, and towing setup before we ship. Purchase with confidence; we review every build.\u003c\/p\u003e\u003c\/blockquote\u003e","brand":"Cognito Motorsports Truck","offers":[{"title":"Default Title","offer_id":51705393938753,"sku":"120-90582","price":1149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/120-90582_0-GFGQ.jpg?v=1778201246","url":"https:\/\/obsidianforgedautosupply.com\/products\/cognito-sm-series-ldg-traction-bar-kit-ford-f250-f350-super-duty-120-90582","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}