BD Diesel Transmission Kit - 2003-2004 Dodge 48RE 4WD w/ Tap Shifter & Billet Input Shaft

If you're looking to significantly upgrade the drivetrain on your 2003-2004 Dodge Ram 2500 or 3500, this BD Diesel TorqueMaster transmission kit is built to handle serious work. This isn't just a rebuilt stock unit; it's a complete overhaul designed to handle up to 300% more power and torque than the original transmission. You get a fully rollerized geartrain, a billet input shaft engineered to withstand rapid acceleration and high torque, and a high-temperature Raybestos band with a billet strut and anchor for added durability. The kit also includes BD's Tapshifter system, which gives you electronic gear selection, torque converter lock-up control, and a manual gear mode right at your fingertips.

BD Diesel has revised the oil circuits and increased line pressure to 190-200 psi, starting at much lower engine RPMs and lighter throttle input, while still maintaining a comfortable light throttle shift feel and eliminating shuttle shifting. They've replaced stock thrust washers with roller Torrington bearings to save the governor solenoids and reduce friction, and the intermediate shaft is drilled for increased lubrication. You'll also find a new design valve body, an upgraded governor pressure transducer with twice the burst pressure of stock, and a cooler line case saver to protect against leaks. This transmission comes with a heavy-duty aluminum pan that adds extra oil capacity and has heat-dissipating fins to keep temperatures down, along with BD's auxiliary full-flow filter kit for an extra layer of protection.

This comprehensive kit includes everything you need to get your Ram's transmission upgraded, including a new model shift lever, BD control module, gear selection display, and a sealed plug-in wiring harness that requires no cutting or tapping of factory wires. It's important to note that using a third-party or OE converter with this transmission will invalidate the warranty, so be sure to use the BD converter that comes with it. This transmission is tested on a dyno before it ships, ensuring it's ready to perform, but it is not warranted for race or sled pull use.