Engineered for enhanced strength and smoother operation, the BD Diesel TowMaster 4R100 Transmission & Converter Package is built to handle the torque demands of your 1999–2003 Ford 7.3L Power Stroke 2WD. Whether you tow, daily drive, or run work loads, this matched transmission and ProForce torque converter combo improves shift quality, durability, and efficiency across the board.

This kit includes a dyno-tested 4R100 transmission, BD’s ProForce torque converter, a deep aluminum transmission pan, and a frame-mounted auxiliary filter kit for extra protection. BD’s upgrades to internal clutch capacity, lubrication circuits, and hydraulic control mean longer service life and confident drivability in any condition.

💰 $1,500 USD refundable core deposit required.

✅ Key Features:

Transmission Highlights:

• BD HD Aluminum Deep Transmission Pan (adds 6 quarts of capacity)

• Recalibrated accumulator body for firmer, quicker shifts

• Full shift kit w/ line mod valve increases line pressure

• Additional lubrication for OD planet, output & intermediate shafts

• Tapped & sealed feed circuits to prevent case leaks

• Upgraded OD snap ring & machined center support

• Fully rollerized geartrain & reworked front pump

• Auxiliary full-flow frame-mounted filter kit included (1990–2003)

• Dyno-tested for performance and reliability

Clutch Count Upgrades:

• Coast Clutch: 2

• Forward: 5 (+25%)

• Direct: 5

• Low Reverse: 7 (+17%)

• Intermediate: 4 (+33%)

• Overdrive: 4 (+33%)

ProForce Torque Converter:

• Cast aluminum stator enhances torque multiplication

• Lower RPM response than OEM for better drivability

• Furnace-brazed fins for increased strength

• Stamp-forged steel front cover

• More efficient lock-up and reduced heat under load

🚙 Vehicle Compatibility:

• 1999 Ford F-250 / F-350 / F-450 / F-550 7.3L Power Stroke 2WD

• 2000 Ford F-250 / F-350 / F-450 / F-550 7.3L Power Stroke 2WD

• 2001 Ford F-250 / F-350 / F-450 / F-550 7.3L Power Stroke 2WD

• 2002 Ford F-250 / F-350 / F-450 / F-550 7.3L Power Stroke 2WD

• 2003 Ford F-250 / F-350 / F-450 / F-550 7.3L Power Stroke 2WD

⚠️ Excursion models must use a factory-style transmission pan. BD Deep Pan may interfere with factory crossmember.

For a 4WD version see 1064444SM

📦 What’s Included:

• BD Diesel TowMaster 4R100 Transmission Assembly

• BD ProForce Torque Converter

• BD Aluminum Deep Transmission Pan

• Frame-Mounted Full Flow Auxiliary Filter Kit

• Upgraded Clutch Packs (pre-installed)

• Reworked Front Pump

• Installation Instructions

🛠️ Why BD Diesel?

With over 45 years of transmission engineering expertise, BD Diesel builds driveline systems that handle the demands of modern diesel performance. The TowMaster 4R100 package improves oiling, clutch capacity, shift precision, and torque delivery—making it the trusted upgrade for Power Stroke owners across North America. Every unit is dyno-tested and backed by a 36-month/150,000-mile parts warranty.