{"product_id":"pacbrake-alpha-hd-pro-rear-air-suspension-kit-19-26-gm-1500-hp10340-j","title":"Pacbrake Alpha HD Pro Rear Air Springs | 19-26 GM 1500","description":"\u003ch2\u003ePacbrake Alpha HD Pro Rear Air Suspension Springs Kit for 2019-2026 Chevy Silverado \u0026amp; GMC Sierra 1500\u003c\/h2\u003e\n\u003cp\u003eEliminate rear-end sag, headlights pointing upward, and uncontrolled body roll during heavy towing with the Pacbrake Alpha HD Pro Rear Air Suspension Kit. Carrying heavy payload or towing heavy trailers strains stock rear leaf springs, leading to severe bottoming out, poor braking stability, and accelerated tire wear.\u003c\/p\u003e\n\u003cp\u003eBuilt using heavy-duty double-bellows air springs featuring anodized aluminum end caps, this air bag kit provides up to 5,000 lbs of load-leveling capacity. According to SEMA chassis load engineering benchmarks, supplemental air suspension systems absorb high-frequency axle vibrations while maintaining proper front wheel alignment and steering traction under maximum load. Built to endure freezing sub-zero conditions, extreme road salt spray, and rough off-road washboards, Pacbrake Alpha HD springs deliver independent left-and-right pneumatic leveling to stabilize off-center cargo with complete confidence.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Leveling Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 5,000 lbs (2,268 kg) Dual Leveling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Spring Style\u003c\/td\u003e\n\u003ctd\u003eDouble-Bellow Heavy Duty Reinforced Rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap Construction\u003c\/td\u003e\n\u003ctd\u003eAnodized Aluminum End Caps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracket Material\u003c\/td\u003e\n\u003ctd\u003ePrecision Laser-Cut Powder-Coated Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Pressure Range\u003c\/td\u003e\n\u003ctd\u003e5 PSI Minimum to 100 PSI Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFifth-Wheel Compatibility\u003c\/td\u003e\n\u003ctd\u003eFits Vehicles Equipped with 5th Wheel Frame Brackets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eMade in Canada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003eHP10340-J\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChevrolet Silverado 1500:\u003c\/strong\u003e 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGMC Sierra 1500:\u003c\/strong\u003e 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBed Lengths:\u003c\/strong\u003e Compatible with all short, standard, and long box configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifted Trim Note:\u003c\/strong\u003e Models with factory or aftermarket lift kits (such as Trail Boss and AT4) require a 2\" air spring spacer kit for proper fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment Exclusions:\u003c\/strong\u003e NOT compatible with models equipped with Adaptive Ride Control (ARC) or MagneRide electronic suspension systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDirect bolt-on installation using vehicle-specific brackets; no drilling into the main frame rails required.\u003c\/li\u003e\n\u003cli\u003eCompatible with under-bed and in-bed 5th wheel hitch bracket systems mounted along the frame.\u003c\/li\u003e\n\u003cli\u003eIncludes complete air line tubing, Schrader inflation valves, mounting hardware, and detailed assembly instructions.\u003c\/li\u003e\n\u003cli\u003eAlways maintain a minimum of 5 PSI in the air springs at all times to prevent internal bag chaffing or pinching.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDoes this kit increase my vehicle's Gross Vehicle Weight Rating (GVWR)?\u003c\/h3\u003e\n\u003cp\u003eNo, air springs provide load leveling support to prevent sagging and improve handling under heavy loads, but they do not increase your truck's factory GVWR capacity.\u003c\/p\u003e\n\u003ch3\u003eCan I install these air springs on my Silverado Trail Boss or GMC Sierra AT4?\u003c\/h3\u003e\n\u003cp\u003eYes, but because Trail Boss and AT4 models come factory lifted from the dealership, you must install an additional 2-inch spacer block to ensure correct air spring height.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e HP10340-J\u003c\/p\u003e","brand":"Pacbrake","offers":[{"title":"Default Title","offer_id":52778042491163,"sku":"FQCM_HP10340-J","price":689.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0863\/3165\/4427\/files\/pacbrake-alpha-hd-pro-rear-air-suspension-kit-hp10340-j.jpg?v=1788606464","url":"https:\/\/4x4wavers.com\/es\/products\/pacbrake-alpha-hd-pro-rear-air-suspension-kit-19-26-gm-1500-hp10340-j","provider":"4X4 WAVERS","version":"1.0","type":"link"}