Description
BD Diesel
Transmission
This upgraded transmission is engineered to deliver improved strength, consistent shifting, and long-term reliability for street and towing applications. It features an upgraded valve body, upgraded governor solenoid, and upgraded governor pressure transducer (47RE/48RE), providing twice the burst pressure of stock and increasing line pressure to 190–200 PSI. Shuttle shifting issues are eliminated, and a modified manual valve ensures proper lubrication in all gear positions.
Factory thrust bushings are replaced with roller-style Torrington bearings to reduce friction and improve durability. Clutch capacity is significantly increased with 6 direct clutches, 5 forward clutches, 6 overdrive clutches, and 10 overdrive direct clutches. A high-temperature, high-energy Raybestos band, paired with a billet band lever and billet band strut, provides improved holding power under load.
To handle high-horsepower demands, the transmission is equipped with a billet “Big” fine-spline input shaft, designed to absorb shock from rapid throttle inputs. A drilled intermediate shaft improves lubrication and overall reliability.
Cooling and fluid capacity are enhanced with a BD rigid aluminum heavy-duty transmission pan, which adds 2 quarts of additional fluid capacity. Integrated heat-dissipating fins help manage operating temperatures, while a magnetic drain plug captures metallic debris. Additional protection is provided by a BD auxiliary full-flow filter kit, and every transmission includes a cooler line case saver. Each unit is dyno tested to ensure proper operation and performance.
Torque Converter
The torque converter features an enhanced stall speed optimized for street and towing applications. Machined pistons and heavy-duty springs absorb engagement shock, while a stamp-forged, one-piece cover eliminates warpage caused by clutch heat. The taller cover design allows for more frequent rebuilds over the life of the converter.
A trapezoid tooth design with tighter tolerances improves torque transfer, while self-centering teeth increase contact area to reduce wear and chatter. Thrust bearings are used in place of plastic thrust washers for added durability. A precision riveting process ensures proper alignment and eliminates vibration or embrittlement associated with welding. The cast stator design maximizes torque multiplication, and new sprag components ensure long-term reliability. Overall weight is reduced by 12 pounds compared to competing designs.
Warranty
This transmission is backed by a 36-month or 150,000-mile parts warranty and a 12-month or 24,000-mile labor warranty.
Core Charge Option 1: Customer to send in core to receive product
Core Charge Option 2: Additional payment is sent in, new products are delivered, additional payment is returned when core is received.
SEE CORE RETURN POLICY
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