{"id":9876,"date":"2026-06-15T15:34:06","date_gmt":"2026-06-15T15:34:06","guid":{"rendered":"https:\/\/138.197.86.188\/?product=1999-2021-ford-e450-leaf-springs-43-1339-xl"},"modified":"2026-06-15T15:57:34","modified_gmt":"2026-06-15T15:57:34","slug":"1999-2021-ford-e450-leaf-springs-43-1339-xl","status":"publish","type":"product","link":"https:\/\/truckpartssupplyco.com\/product\/1999-2021-ford-e450-leaf-springs-43-1339-xl\/","title":{"rendered":"1999-2021 Ford E450 Leaf Springs | 43-1339-XL"},"content":{"rendered":"<p><strong>Year:<\/strong> 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 201<br \/><strong>Make:<\/strong> Ford<br \/><strong>Model:<\/strong> E450<br \/><strong>OEM Number: YC2Z5560AA \/ YC255560AA<\/strong> <br \/><strong>Width:<\/strong> 3 in.<br \/><strong>PL-1 S.E. (A):<\/strong> 23 in.<br \/><strong>PL-1 L.E. (B):<\/strong> 33 in.<br \/><strong>Arch (C):<\/strong> 1 3\/8 in.<br \/><strong>Number of Leaves:<\/strong> 1<br \/><strong>Grading:<\/strong> 1\/447<br \/><strong>Pack Thickness (D):<\/strong> 7\/16 in.<br \/><strong>Spring Capacity at Pad:<\/strong> 575 lbs.<br \/><strong>Remarks:<\/strong> Extra leaf for all multileaf springs; Use with (2) D-97 tip inserts, Sold separately<br \/> Sold individually.<\/p>\n<p>Unlock unmatched durability and superior performance with the 43-1339-XL leaf springs. Crafted from 100% American steel, these essential components are tailor-made to provide optimal support and suspension for your heavy-duty Ford E450 trucks.<\/p>\n<p>Engineered with unwavering precision, our leaf springs meet the highest quality standards in the industry. They&#8217;re built tough to withstand even the harshest road conditions, ensuring reliability and longevity that&#8217;s second to none. Rest assured, each spring undergoes rigorous quality control checks before leaving our facility.<\/p>\n<p>Need assistance selecting or understanding which leaf spring is right for you? Our team of knowledgeable experts stands ready to help. Whether it&#8217;s finding a perfect fit or answering any questions about their exceptional performance capabilities we&#8217;ve got you covered! Contact us at 1-800-922-3283 or email store.superiorspring@gmail.com.<\/p>\n<p>Experience peace of mind knowing that when it comes to top-tier leaf springs, we consistently exceed expectations while proudly surpassing industry benchmarks. Made right here in America using premium materials &#8211; choose Superior Springs for unrivaled quality craftsmanship designed specifically for your heavy-duty Ford E450 vehicles&#8217; needs.<\/p>\n<p>Your vehicle deserves nothing less than peak operation excellence even under demanding conditions.<\/p>\n<p>When replacing leaf springs, the removed u-bolts <strong>cannot<\/strong> be reused.<\/p>\n<p>Suspension u-bolts are manufactured with a smooth rolled thread, while the mating hi-nuts are manufactured with sharp cut threads. When a u-bolt is tightened to its recommended torque level, the u-bolt threads stretch as they mate with the hi-nuts. Although it is not always visible to the naked eye, this damages the threads. Removed the hi-nuts from the u-bolt will cause a cross-threading that will not allow the u-bolt to be adequately re-torqued.<\/p>\n\n    <div class=\"xs_social_share_widget xs_share_url after_content \t\tmain_content  wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content\">\n\n\t\t\n        <ul>\n\t\t\t        <\/ul>\n    <\/div> \n","protected":false},"excerpt":{"rendered":"<p>Year: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 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