BD Diesel Transmission Kit - 2003-2004 Dodge 47RE 4wd

If you're pushing your 2003-2004 Dodge Ram 2500 or 3500 beyond what the stock transmission can handle, it's time to consider a serious upgrade. This BD Diesel Stage 4 transmission kit is built to handle significantly more power and torque than the original unit, making it a solid choice for trucks that see heavy use, towing, or have had engine modifications. It's designed to increase the durability of your entire drivetrain, ensuring reliable performance when you need it most.

BD Diesel has re-engineered key components to improve strength and longevity. They've replaced stock thrust washers with roller Torrington bearings, which not only reduce friction but also help save your governor solenoids. The intermediate shaft is drilled for better lubrication, and the manual valve has been modified to ensure lubrication in all gear positions. This transmission also incorporates more rugged components from the 48RE model, giving you an advantage over the stock 47RE. You'll find a significant increase in clutch count, with added material on the high-temp Raybestos bands and a billet band strut and anchor for added strength. The valve body is updated with a new design and revised oil circuits, and an upgraded governor pressure transducer and solenoid are included to manage line pressure more effectively, starting at lower RPMs and lighter throttle inputs. This results in firmer shifts and a more responsive feel without shuttle shifting issues.

Beyond the internal upgrades, this kit includes BD Diesel's rigid aluminum heavy-duty transmission pan. This pan not only adds an extra quart of oil capacity for better cooling but also helps reduce case flex and internal oil leakage. Its heat-dissipating fins work to keep temperatures down, and a magnetic drain plug is included to catch any stray metal particles. For even more protection, a BD auxiliary full-flow filter kit is bundled with this transmission, ensuring cleaner fluid and longer component life. Every transmission is dyno-tested before it leaves BD Diesel, and it comes with a 36-month or 150,000-mile limited warranty, giving you confidence in its performance and reliability.