{"product_id":"gdp-bolt-on-traction-bars-kit-2001-2019-gm-2500hd-3500hd","title":"GDP Bolt-On Traction Bars Kit (2001–2019 GM 2500HD\/3500HD)","description":"\u003cp data-start=\"869\" data-end=\"1266\"\u003eThe \u003cstrong data-start=\"873\" data-end=\"906\"\u003eGDP Bolt-On Traction Bars Kit\u003c\/strong\u003e is designed to control axle wrap and improve rear-end stability on 2001–2019 GM 2500HD and 3500HD trucks. Under heavy acceleration or towing loads, leaf spring suspension can allow the axle housing to rotate, causing wheel hop, reduced traction, and driveline stress. This system limits unwanted axle movement while maintaining normal suspension articulation.\u003c\/p\u003e\n\u003cp data-start=\"1268\" data-end=\"1454\"\u003eThis is a true bolt-on design that does not require welding or permanent chassis modification. The kit mounts directly to the frame and axle assembly using application-specific brackets.\u003c\/p\u003e\n\u003chr data-start=\"1456\" data-end=\"1459\"\u003e\n\u003ch2 data-start=\"1461\" data-end=\"1490\"\u003eWhat Traction Bars Address\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAxle wrap under acceleration\u003c\/li\u003e\n\u003cli\u003eWheel hop during high torque launches\u003c\/li\u003e\n\u003cli\u003eDriveline vibration caused by axle rotation\u003c\/li\u003e\n\u003cli\u003eInconsistent traction when towing or hauling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1665\" data-end=\"1785\"\u003eBy stabilizing the rear axle, traction bars help maintain consistent tire contact and improve overall driveline control.\u003c\/p\u003e\n\u003chr data-start=\"1787\" data-end=\"1790\"\u003e\n\u003ch2 data-start=\"1792\" data-end=\"1813\"\u003eAvailable Variants\u003c\/h2\u003e\n\u003cp data-start=\"1815\" data-end=\"1907\"\u003eThis listing includes multiple configurations to match axle diameter and vehicle generation:\u003c\/p\u003e\n\u003ch3 data-start=\"1909\" data-end=\"1976\"\u003e🔹 75\" Traction Bars – 3.5\" Axle (2001–2010 GM 2500HD\/3500HD)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for early Duramax platforms\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.5\" axle tubes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2055\" data-end=\"2122\"\u003e🔹 70\" Traction Bars – 4.0\" Axle (2011–2019 GM 2500HD\/3500HD)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"2125\" data-end=\"2158\"\u003eDesigned for later GM HD trucks\u003c\/li\u003e\n\u003cli data-start=\"2161\" data-end=\"2194\"\u003eCompatible with 4.0\" axle tubes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2055\" data-end=\"2122\"\u003e🔹 Available Finishes for Color and Look\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"2125\" data-end=\"2158\"\u003eRaw Steel\u003c\/li\u003e\n\u003cli data-start=\"2161\" data-end=\"2194\"\u003eBlack (Powder Coated)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2368\" data-end=\"2371\"\u003e\n\u003ch2 data-start=\"2373\" data-end=\"2397\"\u003eConstruction \u0026amp; Design\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy-duty steel bar construction\u003c\/li\u003e\n\u003cli\u003eBolt-on frame and axle mounting brackets\u003c\/li\u003e\n\u003cli\u003eApplication-specific length and axle diameter compatibility\u003c\/li\u003e\n\u003cli\u003eDesigned for diesel torque loads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2584\" data-end=\"2587\"\u003e\n\u003ch2 data-start=\"2589\" data-end=\"2610\"\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli data-start=\"2614\" data-end=\"2636\"\u003eBolt-on installation\u003c\/li\u003e\n\u003cli data-start=\"2639\" data-end=\"2660\"\u003eNo welding required\u003c\/li\u003e\n\u003cli data-start=\"2663\" data-end=\"2703\"\u003eBasic mechanical knowledge recommended\u003c\/li\u003e\n\u003cli data-start=\"2706\" data-end=\"2751\"\u003eVerify axle tube diameter prior to ordering\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr data-start=\"2753\" data-end=\"2756\"\u003e\n\u003ch2 data-start=\"2758\" data-end=\"2776\"\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp data-start=\"2778\" data-end=\"2846\"\u003e\u003cstrong data-start=\"2778\" data-end=\"2810\"\u003e2001–2010 GM Duramax LB7, LLY, LBZ, LMM 2500HD \/ 3500HD\u003c\/strong\u003e\u003cbr data-start=\"2810\" data-end=\"2813\"\u003e(3.5\" axle tube – 75\" bar length)\u003c\/p\u003e\n\u003cp data-start=\"2848\" data-end=\"2916\"\u003e\u003cstrong data-start=\"2848\" data-end=\"2880\"\u003e2011–2019 GM Duramax LML, L5P 2500HD \/ 3500HD\u003c\/strong\u003e\u003cbr data-start=\"2880\" data-end=\"2883\"\u003e(4.0\" axle tube – 70\" bar length)\u003c\/p\u003e\n\u003cp data-start=\"2918\" data-end=\"2977\"\u003eAlways confirm axle diameter before selecting your variant.\u003c\/p\u003e\n\u003chr data-start=\"2979\" data-end=\"2982\"\u003e\n\u003ch2 data-start=\"2984\" data-end=\"3033\"\u003eWhy Axle Wrap Control Matters on Diesel Trucks\u003c\/h2\u003e\n\u003cp data-start=\"3035\" data-end=\"3152\"\u003eHigh-torque diesel engines can induce significant axle rotation under load. Without proper control, this can lead to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePremature U-joint wear\u003c\/li\u003e\n\u003cli\u003eLeaf spring fatigue\u003c\/li\u003e\n\u003cli\u003eReduced traction consistency\u003c\/li\u003e\n\u003cli\u003eIncreased drivetrain stress\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3271\" data-end=\"3367\"\u003eA properly installed traction bar system helps maintain driveline geometry during torque events.\u003c\/p\u003e","brand":"GDP","offers":[{"title":"2011–2019 GM Duramax","offer_id":58555616002208,"sku":null,"price":504.05,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6866\/2176\/files\/GDP40503-B-1_22bc29ee-863c-47bf-93db-45e4a68215e2.jpg?v=1785193281","url":"https:\/\/www.protechdieselcenter.com\/products\/gdp-bolt-on-traction-bars-kit-2001-2019-gm-2500hd-3500hd","provider":"Protech Diesel Center","version":"1.0","type":"link"}