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Performance Transmissions

To some it is a challenge to simply disassemble and assemble a Ford transmission. BDs challenge was to examine the mechanical design and study the shift strategy with the goal to improve the durability and driving experience.

The normal smooth shifting associated with Ford transmissions produces heat and advanced wear that severely shortens life. The BD transmission and convertor clutches are mechanically and pneumatically designed not to slip. The new shift strategy change results in "Quick Sharp Shifts."

Enhancements to achieve this include new control valve designs, higher pressures 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 4 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 on our Transmission Dynamometer then matched to a torque convertor and packaged in durable plastic molded cases for shipping.

Installation and warranty service is available at BD Diamond Installation centers throughout North America.

Torque convertors are not included in the kit price but the deep sump cover is!

BD In-line Transmission Filter kit 94-97 Ford E40D	$204.25
Transmission In-Line Filter Kits - BD's Transmission filter kit protects your Ford, Dodge and GM heavy duty Automatic Transmissions against contamination in the transmission fluid - Eliminates contamination from prior transmission failure or excessive wear and secondary damage to other parts once a part failure has occurred - Extends Transmission life by minimizing wear by preventing sticking and scoring of sensitive shift control valves. - Added oil capacity adds cooling capacity - An off the shelf oil filter has a bypass valve and prevents formation of sludge that blocks passages - Designed for easy installation the kits come complete with all required hardware with large hoses and fittings that result in high GPM levels even under extreme use. [ More Information ]

BD In-line Transmission Filter Kit 99-03 Ford 4R100	$204.25
Transmission In-Line Filter Kits - BD's Transmission filter kit protects your Ford, Dodge and GM heavy duty Automatic Transmissions against contamination in the transmission fluid - Eliminates contamination from prior transmission failure or excessive wear and secondary damage to other parts once a part failure has occurred - Extends Transmission life by minimizing wear by preventing sticking and scoring of sensitive shift control valves. - Added oil capacity adds cooling capacity - An off the shelf oil filter has a bypass valve and prevents formation of sludge that blocks passages - Designed for easy installation the kits come complete with all required hardware with large hoses and fittings that result in high GPM levels even under extreme use. [ More Information ]

BD TowLoc for 99-03 Ford Powerstroke	$427.50
Designed for Exhaust Brake Applications! The TOWLOC is BD's new programmable transmission and convertor control designed for exhaust brake applications; the most powerful transmission control yet. The TOWLOC monitors the operation of the vehicle speed, engine speed and engine load to compute the optimum transmission control algorithm. This process controls transmission downshifting as well as torque convertor operation for optimum results. You can also customize the unit for the ultimate transmission control for working your truck with an exhaust retarder and a higher performance engine. The TowLoc comes preset with all of the following features but can be modified by a BD accredited Diamond installation facility or by an at home technical buff with a personal computer.The electronics are packaged in weather resistant enclosure for the engine compartment that taps into 10 -12 sources for control and sensing. Engine brake disengage speed to reduce noise and engine load at idle Torque converter lock up clutch engagement speed to prevent low vehicle speed chuggin with the torqu lock up engaged. Programmable automatic 4th to 3rd downshift Torque converter clutch lock-out speed to disengage converter lock up at low engine rpm Disengages lock-up clutch during heavy accelerator pedal action to protect power train and prevent slippage with high torque applications. Vehicle specific speed calibration Engine temperature controlled exhaust brake warm-up feature PressureLoc delay engagement time control Over-drive lock-out that ensures the truck starts in drive and prevents engine lugging for low speed driving Self test cycles for exhaust brake, pressure loc and shift functions. All these functions can be programmed with P/C connected live to the TowLoc while driving the truck. [ More Information ]

BD TowLoc for 99-03 Ford Powerstroke	$427.50
Designed for Exhaust Brake Applications! The TOWLOC is BD's new programmable transmission and convertor control designed for exhaust brake applications; the most powerful transmission control yet. The TOWLOC monitors the operation of the vehicle speed, engine speed and engine load to compute the optimum transmission control algorithm. This process controls transmission downshifting as well as torque convertor operation for optimum results. You can also customize the unit for the ultimate transmission control for working your truck with an exhaust retarder and a higher performance engine. The TowLoc comes preset with all of the following features but can be modified by a BD accredited Diamond installation facility or by an at home technical buff with a personal computer.The electronics are packaged in weather resistant enclosure for the engine compartment that taps into 10 -12 sources for control and sensing. Engine brake disengage speed to reduce noise and engine load at idle Torque converter lock up clutch engagement speed to prevent low vehicle speed chuggin with the torqu lock up engaged. Programmable automatic 4th to 3rd downshift Torque converter clutch lock-out speed to disengage converter lock up at low engine rpm Disengages lock-up clutch during heavy accelerator pedal action to protect power train and prevent slippage with high torque applications. Vehicle specific speed calibration Engine temperature controlled exhaust brake warm-up feature PressureLoc delay engagement time control Over-drive lock-out that ensures the truck starts in drive and prevents engine lugging for low speed driving Self test cycles for exhaust brake, pressure loc and shift functions. All these functions can be programmed with P/C connected live to the TowLoc while driving the truck. [ More Information ]