BD Tow & Street 48RE Transmission

BD transmissions are built specifically to handle the high torque loads of diesel engines at our state-of-the-art transmission facility. We re-program the valve body for higher line pressure, and add heavy-duty clutches with up to 25% more material than stock. The stock thrust washers, which disintegrate and leave metal filings in your transmission, are replaced with roller Torrington bearings. We install new input shafts and hubs to eliminate possible metal fatigue or high torque load damage from prior use. We recommend billet steel input and output shafts for applications with extra big tires and modified power levels. 

Inside each transmission is a NEW DESIGN valve body that achieves up to 80% higher clutch apply pressures over the stock unit and up to 50% over the competitors with the pressure increase starting at much lower engine rpms and at lighter throttle pedal position movement. Light throttle shift firmness is also maintained at these higher apply pressures and no shuttle shifting problems. 

Our transmission packages also include a BD rigid aluminum heavy duty transmission pans which adds extra oil capacity and reduces case flex, plus, includes a BD auxiliary full flow filter kit for extra protection. 

Each transmission is dyno-tested to make sure it functions properly in all gears, then the pan is dropped and everything inspected and adjusted before it is shipped to you in one of our containers. Torque Converter sold separately. 

Increased Line Pressures Heavy-Duty Clutches

Stock Thrust Washers Are Replaced With Torrington Roller Bearings 

New Input Shafts & Hub To Eliminate Possible Metal Fatigue 

Dyno-Tested To Ensure Functionality 

Warranty Note: A new BD-Power Torque Converter must be installed at the time of installation of a BD-Power Transmission. Use of a 3rd party or OE Torque Converter will void transmission warranty.