{"product_id":"ram-1500-2019-2026-hd-challenge-rear-brake-system-380x32","title":"Ram 1500 2019-2026 HD Challenge Rear Brake System","description":"\u003ch4\u003eUpgraded Rear Braking for the 2019-2026 Ram 1500: Rotora HDTRX-380x32 HD Challenge Rear Brake System\u003c\/h4\u003e\u003cp\u003eThe HDTRX-380x32 HD Challenge Rear Brake System delivers purpose-built rear axle performance for the 2019-2026 Ram 1500 (DT platform). Pairing a 380x32mm two-piece floating rotor with an RG408 4-piston monoblock caliper, this kit provides the thermal capacity and clamping force to support demanding towing, hauling, and performance driving. The HDTRX-380x32 includes the EPBB (Electronic Parking Brake Bypass) module required for full compatibility with the DT platform's integrated electronic parking brake system.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e380x32mm two-piece floating disc rotor with aluminum hat\u003c\/li\u003e\n\u003cli\u003eRG408 forged 4-piston monoblock caliper\u003c\/li\u003e\n\u003cli\u003eIncludes EPBB (Electronic Parking Brake Bypass) module for DT platform compatibility\u003c\/li\u003e\n\u003cli\u003eBlack powder-coated hat on all color variants\u003c\/li\u003e\n\u003cli\u003e10 caliper color options: Zinc, Red, White, Yellow, Orange, Green, Light Blue, Blue, Silver, Black\u003c\/li\u003e\n\u003cli\u003eSlotted or Cross-Drilled disc pattern available\u003c\/li\u003e\n\u003cli\u003eStainless steel brake lines included\u003c\/li\u003e\n\u003cli\u003eDirect-fit, no cutting or welding required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2019-2026\u003c\/td\u003e\n\u003ctd\u003eRam\u003c\/td\u003e\n\u003ctd\u003e1500\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eHDTRX-380x32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eRotora\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle Position\u003c\/td\u003e\n\u003ctd\u003eRear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Size\u003c\/td\u003e\n\u003ctd\u003e380x32mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Type\u003c\/td\u003e\n\u003ctd\u003e2-Piece Floating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliper Model\u003c\/td\u003e\n\u003ctd\u003eRG408\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston Count\u003c\/td\u003e\n\u003ctd\u003e4-Piston Monoblock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHat Color\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEPBB Module\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrake Lines\u003c\/td\u003e\n\u003ctd\u003eStainless Steel Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eSee product label\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e2x 380x32mm two-piece floating rotors (rear pair)\u003c\/li\u003e\n\u003cli\u003e2x RG408 4-piston monoblock calipers\u003c\/li\u003e\n\u003cli\u003eEPBB (Electronic Parking Brake Bypass) module\u003c\/li\u003e\n\u003cli\u003eCaliper mounting brackets\u003c\/li\u003e\n\u003cli\u003eStainless steel brake lines\u003c\/li\u003e\n\u003cli\u003eHardware and installation hardware kit\u003c\/li\u003e\n\u003cli\u003eRotora instruction sheet\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Rotora\u003c\/h4\u003e\u003cp\u003eRotora engineers performance brake systems for street and track use. The HDTRX-380x32 is part of the HD Challenge series specifically developed for the Ram 1500 DT platform, accounting for the electronic parking brake architecture and providing every component needed for a complete rear axle upgrade.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cstrong\u003eWhat is the HDTRX-380x32?\u003c\/strong\u003e\u003cp\u003eThe HDTRX-380x32 is a complete rear big-brake kit for the 2019-2026 Ram 1500 featuring a 380x32mm two-piece floating rotor, RG408 4-piston monoblock caliper, and EPBB module from Rotora's HD Challenge series.\u003c\/p\u003e\u003cstrong\u003eWhy is the EPBB module included with the HDTRX-380x32?\u003c\/strong\u003e\u003cp\u003eThe 2019-2026 Ram 1500 DT platform integrates an electronic parking brake into the rear caliper. The EPBB (Electronic Parking Brake Bypass) module allows the aftermarket caliper to interface with the factory electronic control system without triggering fault codes or disabling the parking brake function.\u003c\/p\u003e\u003cstrong\u003eDoes the HDTRX-380x32 include stainless steel brake lines?\u003c\/strong\u003e\u003cp\u003eYes. Stainless steel braided brake lines are included with the HDTRX-380x32 rear kit.\u003c\/p\u003e\u003cstrong\u003eWhat caliper colors are available on the HDTRX-380x32?\u003c\/strong\u003e\u003cp\u003eTen colors are available: Zinc (standard, no upcharge), Red, White, Yellow, Orange, Green, Light Blue, Blue, Silver, and Black. Non-Zinc colors carry a per-axle upcharge.\u003c\/p\u003e\u003cstrong\u003eIs the HDTRX-380x32 compatible with the 2024 and 2025 and 2026 Ram 1500?\u003c\/strong\u003e\u003cp\u003eYes. The HDTRX-380x32 is fitment-verified for the Ram 1500 DT platform spanning model years 2019 through 2026.\u003c\/p\u003e\u003cstrong\u003eWhat wheel clearance does the HDTRX-380x32 require?\u003c\/strong\u003e\u003cp\u003eA minimum 20-inch wheel is recommended. Verify clearance with your specific wheel and tire combination before ordering.\u003c\/p\u003e\u003cstrong\u003eCan the HDTRX-380x32 be paired with the HDTRX-365x36 front kit?\u003c\/strong\u003e\u003cp\u003eYes. The HDTRX-380x32 rear kit is designed as the rear axle complement to the HDTRX-365x36 front kit, providing a balanced complete axle-to-axle HD Challenge brake upgrade for the 2019-2026 Ram 1500.\u003c\/p\u003e\u003cstrong\u003eIs the HDTRX-380x32 appropriate for towing use?\u003c\/strong\u003e\u003cp\u003eYes. The 380x32mm rotor and 4-piston caliper of the HDTRX-380x32 substantially improve rear braking capacity and thermal management compared to factory brakes, making it ideal for trucks used for towing and heavy-load hauling.\u003c\/p\u003e\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eSafely lift the vehicle and remove the rear wheels.\u003c\/li\u003e\n\u003cli\u003eRemove the factory rear caliper, bracket, and rotor.\u003c\/li\u003e\n\u003cli\u003eInstall the EPBB module per the included instructions, connecting to the factory electronic parking brake harness.\u003c\/li\u003e\n\u003cli\u003eInstall the HDTRX-380x32 caliper mounting bracket using supplied hardware.\u003c\/li\u003e\n\u003cli\u003eMount the 380x32mm two-piece rotor onto the rear hub.\u003c\/li\u003e\n\u003cli\u003eInstall the RG408 4-piston caliper and torque to specification.\u003c\/li\u003e\n\u003cli\u003eConnect the included stainless steel brake lines.\u003c\/li\u003e\n\u003cli\u003eBleed the rear brake circuit thoroughly.\u003c\/li\u003e\n\u003cli\u003eReinstall wheels and perform the recommended bedding procedure before hard braking.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eWARNING: This product can expose you to chemicals including Chromium (hexavalent compounds), which is known to the State of California to cause cancer. 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