Upgrade your 2020–2024 Ford Transit 3.5L EcoBoost 4WD or naturally aspirated V6 with the BD Diesel 1064684SS Roadmaster Transmission & Converter Package, a high-performance replacement designed to eliminate common factory 10R80 transmission failures.

This package includes a modified valve body that increases line pressure by ~30% for stronger clutch engagement, a retaining-enhanced CDF drum to prevent fluid blockage issues, and an anodized reaction shell that fixes tooth wear found in OEM units. Paired with a ProForce torque converter featuring upgraded friction material, this dyno-tested combo delivers smoother shifts, higher reliability, and greater longevity than stock.

💰 $2,000 Refundable Core Charge Required
⏱️ Estimated Install Time: 11 Hours 30 Minutes
✔️ Fits both EcoBoost & NA 3.5L engines

✅ Key Features:

Transmission:

• BD-modified valve body boosts line pressure by ~30%

• Revised CDF drum with retention design fixes OEM failure

• Anodized reaction shell eliminates common clutch tooth wear

• Smooth, firm shifts using new OEM clutches and steels

• Fully dyno-tested for quality and consistency

ProForce Torque Converter:

• Enhanced friction material for towing, delivery, and everyday use

• Precision remanufactured for smoother, more responsive shifts

• Ideal for vans under frequent load or fleet operation

🚙 Vehicle Compatibility:

• 2020–2024 Ford Transit 3.5L EcoBoost V6 4WD (10R80 Transmission)

• 2020–2024 Ford Transit 3.5L Naturally Aspirated V6 4WD (10R80 Transmission)

✔️ Replaces OEM #s:
• 4WD: LK4Z-7000-HA, LK4Z-7000-EA
• 2WD: LK4Z-7000-C, LK4Z-7000-DA

📦 What’s Included:

• BD Roadmaster 10R80 Transmission Assembly

• BD ProForce Torque Converter (Upgraded Friction Material)

• Modified Valve Body (30% Pressure Increase)

• Revised CDF Drum

• Anodized Reaction Shell

• New OEM Clutches & Steels

• Warranty: 24-Month / 100,000-Mile Parts | 12-Month / 24,000-Mile Labor

🛠️ Why Choose BD Diesel?

BD Diesel’s Roadmaster Series solves the known weak points of the 10R80 transmission platform with long-term, fleet-tested upgrades. From fixing fluid bypass issues with the CDF drum to increasing pressure for improved clutch holding, this transmission package is built for hard use—whether you’re running a delivery van, fleet vehicle, or work truck. Dyno-tested and street-ready, BD keeps your business moving.