BD Diesel
Transmission
This upgraded transmission is engineered for improved durability, consistent shifting, and reliable performance under high load. 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.
Stock thrust bushings are replaced with roller-style Torrington bearings to reduce friction and extend service life. 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, along with a billet band lever and billet band strut, delivers improved holding power and durability.
Strength is further enhanced with a billet “Big” fine-spline input shaft, designed to absorb shock from rapid throttle inputs and high-horsepower applications. A drilled intermediate shaft improves internal lubrication and reliability.
Cooling and fluid capacity are improved with a rigid aluminum heavy-duty transmission pan, which adds 2 quarts of additional fluid capacity. Integrated heat-dissipating fins help control operating temperatures, while a magnetic drain plug captures metallic debris. Additional protection is provided by an auxiliary full-flow filter kit, and a cooler line case saver is installed in every transmission. Each unit is dyno tested to ensure proper operation and performance.
Torque Converter
The torque converter features an enhanced stall for improved drivability and performance. Torque-multiplying cast aluminum stators deliver quicker low-RPM response than the stock converter, resulting in more efficient operation, reduced heat, and improved fuel economy.
A stamp-forged steel front cover increases strength and durability, while furnace-brazed fins improve fluid coupling efficiency. The converter includes up to three times the amount of lock-up clutch material compared to stock for increased holding power and long-term reliability.
Warranty
This transmission and torque converter package is backed by a 36-month or 150,000-mile parts warranty, with 12 months or 24,000 miles of labor coverage.
