{"product_id":"carli-2023-ford-super-duty-add-a-pack-5-5","title":"CARLI 2017+ FORD SUPER DUTY ADD-A-PACK 5.5\"","description":"\u003cdiv dir=\"auto\" class=\"overflow-x-auto relative animation-container\"\u003e\n\u003cdiv data-v-d9d972fa=\"\" class=\"mt-1\"\u003e\n\u003cp data-v-d9d972fa=\"\"\u003eOur \u003cstrong\u003e6 Leaf Progressive Add-a-Pack\u003c\/strong\u003e rear springs are a proprietary design crafted by \u003cstrong\u003eDeaver Spring MFG\u003c\/strong\u003e, specifically engineered to enhance your Super Duty's performance. Here’s what you need to know about these innovative springs:\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cdiv dir=\"auto\" class=\"overflow-x-auto relative animation-container\"\u003e\n\u003cdiv\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cdiv dir=\"auto\" class=\"overflow-x-auto relative animation-container\"\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Design:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eReplaces the factory lower overload leaf with \u003cstrong\u003e6 thinner gauge leaves\u003c\/strong\u003e, significantly improving ride quality while maintaining OEM load capacity.\u003c\/li\u003e\n\u003cli\u003eDesigned to eliminate the harsh rebound of the factory overload spring, allowing for smoother handling of medium to large bumps when paired with a Carli Suspension System.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cdiv dir=\"auto\" class=\"overflow-x-auto relative animation-container\"\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLift Block Included:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eThis kit comes with a lift block to ensure the rear is properly leveled with the front of the \u003cstrong\u003e4.5″\/5.5″ Carli Systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cdiv dir=\"auto\" class=\"overflow-x-auto relative animation-container\"\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Ride Quality:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eThe Progressive Add-a-Pack replaces the \u003cstrong\u003e1″ thick lower overload spring\u003c\/strong\u003e, which doesn’t follow the contour of the rest of the pack. This modification results in:\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePredictable Spring Rate:\u003c\/strong\u003e The truck’s load capacity remains unchanged, leading to a smoother engagement and disengagement of the springs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Traction:\u003c\/strong\u003e A more predictable rear spring rate enhances both ride quality and traction, especially when loaded.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cdiv dir=\"auto\" class=\"overflow-x-auto relative animation-container\"\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Differences:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eWhile the rear may sit lower under heavy loads, it will ride better compared to stock setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cdiv dir=\"auto\" class=\"overflow-x-auto relative animation-container\"\u003e\n\u003cdiv\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility for F250 and F350:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eF250 Systems:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eThe F250 has a lighter rate spring pack than the F350, making the Add-a-Pack a beneficial upgrade over stock.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cdiv dir=\"auto\" class=\"overflow-x-auto relative animation-container\"\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eF350 Systems:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eThe F350 with the Add-a-Pack may still feel quite stiff, as the main pack does not flex much unless loaded. \u003cstrong\u003eWe do NOT recommend these for F350 models\u003c\/strong\u003e due to potential stiffness issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cdiv dir=\"auto\" class=\"overflow-x-auto relative animation-container\"\u003e\n\u003cdiv\u003e\n\u003ch4\u003e\u003cstrong\u003eOptimal Recommendations:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFor the best ride quality, we recommend the \u003cstrong\u003eFull Replacement Leaf Spring Packs\u003c\/strong\u003e for both the F250 and F350, especially for the F350, which has very stiff factory springs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIf Load Capacity is a Concern:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eConsider pairing the Full Progressive Leaf Springs with an aftermarket airbag system to restore the F350’s capacity.\u003c\/li\u003e\n\u003cli\u003eFor the \u003cstrong\u003e4.5″\/5.5″ lift\u003c\/strong\u003e, we offer \u003cstrong\u003eLong Travel Airbags\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eFor \u003cstrong\u003e2.5″\/3.5″ heights\u003c\/strong\u003e, choose a system that allows airbags to disconnect from the lower mount during suspension cycling, ensuring full rear suspension travel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Carli Suspension","offers":[{"title":"Default Title","offer_id":42897870028889,"sku":"CS-FPAP-45-17","price":1315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0650\/9913\/7113\/files\/17-Ford-Add-a-Packs-4.5.jpg?v=1764953216","url":"https:\/\/thor-off-road.myshopify.com\/products\/carli-2023-ford-super-duty-add-a-pack-5-5","provider":"Thor Off-Road","version":"1.0","type":"link"}