{"product_id":"suncoast-a1-bfp-3-billet-flex-plate-11-16-gm-6-6l-duramax-lml","title":"SunCoast A1-BFP-3 Billet Flex Plate | 2011-2016 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax LML","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 2011–2016 6.6L Duramax LML engines\u003c\/li\u003e\n\u003cli\u003eReplaces weak factory stamped steel flex plate\u003c\/li\u003e\n\u003cli\u003eOne-piece billet construction for superior strength\u003c\/li\u003e\n\u003cli\u003eEliminates heavy cast iron factory flywheel\u003c\/li\u003e\n\u003cli\u003eHandles increased torque without flex or failure\u003c\/li\u003e\n\u003cli\u003ePrevents cracking or center separation under load\u003c\/li\u003e\n\u003cli\u003eEssential for high horsepower or tuned engines\u003c\/li\u003e\n\u003cli\u003eIdeal when paired with upgraded torque converters\u003c\/li\u003e\n\u003cli\u003eImproves power transfer to the transmission\u003c\/li\u003e\n\u003cli\u003eBolts directly to the crank and torque converter\u003c\/li\u003e\n\u003cli\u003eSupports slip-free torque transfer under pressure\u003c\/li\u003e\n\u003cli\u003eDesigned and built for extreme diesel performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStop Flex Plate Failures Before They Start\u003c\/h4\u003e\n\u003cp\u003eWhen you're making serious torque with your 2011–2016 Duramax, the stock flex plate just doesn’t cut it. It might hold up under light loads, but once you start adding power and upgrading your torque converter, it quickly becomes a weak link. The SunCoast A1-BFP-3 Billet Flex Plate is a must-have if you want your drivetrain to stay together when the power hits. It replaces the flimsy stamped steel and bulky cast iron components with a solid one-piece billet design that can handle high torque without flexing, cracking, or warping. Whether you’re towing heavy, launching hard, or daily driving a tuned diesel, this flex plate gives you the confidence to push harder without worrying about failure. It bolts right to the crank and provides a reliable connection to the torque converter, so your power transfer stays smooth and strong. If you're already running a better converter, this is the flex plate that makes sure you get the most out of it.\u003c\/p\u003e\n\u003ch4\u003eReinforced Billet Strength For High Torque Builds\u003c\/h4\u003e\n\u003cp\u003eThe SunCoast A1-BFP-3 Billet Flex Plate is engineered specifically to solve the durability issues found in the stock flex plate used on 2011–2016 GM 2500HD and 3500HD Duramax LML trucks. The factory setup uses a combination of stamped steel and cast iron, which becomes a failure point when torque increases and converter slip is eliminated. This upgraded one-piece billet design is precision-machined to handle the added stress from high-output builds and performance torque converters. It mounts directly to the crankshaft and offers a secure connection point for the converter, ensuring maximum power transfer without distortion. One of the most common failure modes of stock plates is cracking or tearing around the center under load, especially in tuned or boosted applications. SunCoast eliminates that risk by using a solid billet core that distributes stress evenly and holds its shape under extreme conditions. If you're looking to build a reliable drivetrain foundation, this flex plate is a critical upgrade that pairs perfectly with high-stall or multi-disc converters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fitment: \u003c\/strong\u003e2011, 2012, 2013, 2014, 2015, 2016 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax LML\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits 2011–2016 GM 2500HD\/3500HD 6.6L Duramax LML\u003c\/li\u003e\n\u003cli\u003eReplaces factory cast iron and stamped steel flex plate\u003c\/li\u003e\n\u003cli\u003eOne-piece billet design eliminates common failure points\u003c\/li\u003e\n\u003cli\u003eDesigned for use with high torque and upgraded converters\u003c\/li\u003e\n\u003cli\u003eStock flex plates can crack or tear under heavy load\u003c\/li\u003e\n\u003cli\u003eRecommended when running a triple disc or higher stall converter\u003c\/li\u003e\n\u003cli\u003eImproves durability and torque transfer consistency\u003c\/li\u003e\n\u003cli\u003eIdeal for high horsepower, tuned, or towing applications\u003c\/li\u003e\n\u003cli\u003eBolts directly to crankshaft and torque converter\u003c\/li\u003e\n\u003cli\u003ePrevents center hub separation during aggressive use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"SunCoast Performance","offers":[{"title":"Default Title","offer_id":68060763455761,"sku":"SUN-A1-BFP-3","price":868.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/0477\/1089\/files\/94865139165_1_2__21179.jpg?v=1794724109","url":"https:\/\/gautoparts.com\/products\/suncoast-a1-bfp-3-billet-flex-plate-11-16-gm-6-6l-duramax-lml","provider":"Guaranteed Auto Parts","version":"1.0","type":"link"}