To some it is a challenge to simply disassemble and assemble a Ford transmission. BD's challenge was to examine the mechanical design and study the shift strategy with the goal of improving performance and durability. The normal smooth shifting associated with Ford transmissions produces heat and advanced wear that severly shortens life. The BD transmission and converter clutches are mechanically and hydraulically designed not to slip. The new shift strategy change results in ''Quick Sharp Shifts''. Enhancements to achieve this include new control valve designs, higher pressure as well as improved internal oil flow enhancements of the existing port sizes. Additional oil passages have been added to route the oil to assist the current Ford splash lubrication design. Torque load capacity was improved by adding 33% more clutch surface to each of the four clutch packs. The planetary gear packs are special high strength steel and the new heavy-duty roller one-way Sprague clutches maintain directional stability and don't explode. Each transmissions shift pattern and oil pressures are tested before they leave the BD factory and packaged in durable plastic molded cases for shipping.

Note: Price includes a refundable core charge (see below product description for refundable core charge amounts). Core return instructions are included with product. Core must be shipped directly to BD Diesel in original container within 30 days for core refund. Core charge will be refunded by BD Diesel after core has been received.