StreetMonster Ford 6R140 Transmission & Torque Converter

In-stock transmissions usually ship the next business day.

Custom builds or out-of-stock units typically ship within 4–6 weeks.

Need it sooner? Call us — we can often make special arrangements.

We offer the most comprehensive coverage in the industry:

• RoadReady: up to 6 Years (3 Year Manufacture, optional 2 or 3 Years from Extend)
• StockMonster: up to 4 Years (1 Year Manufacture, optional 2 or 3 Years from Extend)
• StreetMonster: up to 5 Years (2 Year Manufacture, optional 2 or 3 Years from Extend)
• SportMonster: 6 Years (3 Year Manufacture, 3 Years from Extend included)
• TrackMonster: 1 Year (1 Year Manufacture, Extend not available)

Extend warranties are included on all Transmission Purchases read more HERE.

No — we offer a $364 Flat-Rate One-Way Shipping to any Address.

If you find a better rate, you're welcome to arrange your own shipping.

Our 6R140 transmission builds are designed for durability and performance across different levels of power and use:

• StreetMonster: Handles up to 100 HP over stock. Great for towing and mild tunes.
• SportMonster: Built for up to 600 HP. Ideal for tuned trucks, heavy hauling, and upgraded turbo systems.
• TrackMonster: Supports 700+ HP. This race-ready build includes billet internals for extreme durability and max torque handling.

All units are dyno-tested and purpose-built to outperform the factory 6R140 in every category.

We include a premium billet torque converter with each 6R140 transmission, matched to your build level:

• StreetMonster: Single-Clutch Billet Converter – reliable for daily use and light towing.
• SportMonster: Dual-Surface Billet Converter – increases clutch surface area and lockup strength.
• TrackMonster: Multi-Clutch Billet Converter – built for high-performance applications and extreme torque loads.

Every converter is balanced and tested for max durability and performance.

Yes — all solenoids and electronic components are replaced or fully remanufactured as part of our standard 6R140 build process.

• New or professionally tested solenoid pack
• Updated internal wiring harness

This ensures clean shifts, stable line pressure, and full compatibility with your vehicle’s ECM and TCM.

No, fluid must be purchased separately. We offer special discounted prices and even cheaper shipping options when you bundle with our fluid at checkout.

Returning your core is simple. Once you are ready to return your core, you can initiate the return process in one of two ways:

• Fill out our Core Return Form (available online) using the button below.
• Or call our Customer Service Team at 800-708-0087 to schedule your return freight pickup.

Please Note:

• The customer is responsible for the return shipping cost.
• A flat-rate fee of $364 will be deducted from your core refund to cover return freight and handling. If Round Trip Shipping is not Prepaid Upfront.
• The core must be the same model and not cracked or damaged beyond rebuild.

Our goal is to make this process as seamless as possible — if you have questions about your core return, just give us a call.