{"product_id":"maxtrac-913321-4-rear-semi-round-21-5-u-bolts-fits-2017-26-f250-f350-4wd","title":"MaxTrac 913321 (4) Rear Semi Round 21.5\" U-Bolts Fits 2017-26 F250\/F350 4wd","description":"\u003ch1\u003e\u003cspan\u003eMaxTrac 913321 Semi-Round U-Bolts F-250 F-350 8\" Lift\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eHeavy-Duty U-Bolts for 8-Inch Lifted Super Duty Trucks\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eComplete your rear suspension setup with the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMaxTrac 913321 Semi-Round U-Bolt Set\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, built for compatible 2017–2026 Ford F-250, F-350, and dually 4WD applications using 8-inch lift blocks. These extended 5\/8-inch steel U-bolts provide the length needed to secure taller rear block configurations.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMade in the USA and protected with a gold zinc-plated finish, the 913321 set is a solid choice for replacing U-bolts or completing a lifted Super Duty rear suspension.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eDesigned for 8\" Lift Blocks\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eExtended 21.5-inch U-bolts are sized for compatible rear suspension applications using 8-inch lift blocks.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHeavy-Duty 5\/8\" Diameter\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe 0.625-inch diameter steel construction provides substantial clamping hardware for lifted F-250 and F-350 rear axle setups.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSemi-Round Profile\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSemi-round construction is designed to match the applicable Super Duty axle and suspension configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eGold Zinc-Plated Finish\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eGold zinc plating adds corrosion resistance while providing the distinctive MaxTrac hardware finish.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eF-250, F-350 \u0026amp; Dually Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFits compatible 2017–2026 Ford Super Duty 4WD applications, including dually models with the required modification on applicable 2020+ trucks.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat's Included\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e5\/8\" semi-round U-bolts\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMaxTrac 913321 U-bolt set\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eVehicle Fitment\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eFits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e2017–2026 Ford F-250 Super Duty 4WD\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2017–2026 Ford F-350 Super Duty 4WD\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2017–2026 Ford F-350 Dually 4WD\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCompatible applications using 8\" rear lift blocks\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eImportant Notes\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eU-bolt dimensions listed by MaxTrac are \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e21.50\" x 3.215\" x 0.625\"\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDesigned for compatible \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e8\" lift block\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e applications.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2020+ dually models require removal of the top-side overload spring and spacer block.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGold zinc-plated finish.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMaxTrac does not recommend wheels wider than 9\" or wheels with less than 4.5\" backspacing. Using wheels outside these specifications may void applicable manufacturer warranties.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e MaxTrac Suspension\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003ePart Number:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 913321\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eUPC:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 706199414498\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eKit Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Lift \/ Level\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Semi-Round U-Bolt Set\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eApplication:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 8\" Lift Blocks\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003ePosition:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rear\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eU-Bolt Length:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 21.50\"\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eU-Bolt Width:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.215\"\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDiameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 5\/8\" (0.625\")\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDrive Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 4WD\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eMaterial:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Steel\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eColor:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Gold\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eFinish:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Gold Zinc Plated\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eSold As:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Set\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eWeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 17 lbs\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 36\" × 6\" × 4\"\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eCountry of Origin:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e USA\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose MaxTrac 913321 U-Bolts?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eLarge rear lift blocks need appropriately sized hardware, and the MaxTrac 913321 is designed specifically for compatible 8-inch Super Duty lift applications. Its extended semi-round design, 5\/8-inch steel construction, and zinc-plated finish make it well suited for lifted F-250, F-350, and dually suspension builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePerfect For\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e8\" rear lift block setups\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFord Super Duty suspension builds\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eF-250 4WD lift applications\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eF-350 lifted trucks\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDually rear suspension setups\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eReplacement extended U-bolts\u003c\/span\u003e\u003c\/p\u003e","brand":"Maxtrac Suspension","offers":[{"title":"Default Title","offer_id":54353895686457,"sku":"913321","price":103.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/5507\/6153\/files\/MaxTrac_913321_Ford_F-250_F-350_semi-round_U-bolts.jpg?v=1787336498","url":"https:\/\/airslamit.com\/products\/maxtrac-913321-4-rear-semi-round-21-5-u-bolts-fits-2017-26-f250-f350-4wd","provider":"airslamit","version":"1.0","type":"link"}