StreetMonster Ford 10R80 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.

The StreetMonster 10R80 requires Ford MERCON® ULV transmission fluid.

• Because the StreetMonster version uses the deep pan setup, it uses approximately 16 quarts of MERCON ULV full synthetic fluid.
• We recommend only using MERCON ULV to prevent shift quality issues or internal damage.
• Always follow the correct Ford fluid level check procedure after installation.

Note: Do not mix MERCON ULV with other ATF types.

Yes — the StreetMonster 10R80 is the upgraded build and is designed to correct several known OEM failure points.

• Heavy-Duty Torque Converter: Built with new friction material to help improve converter durability and power transfer.
• Deep Sump Aluminum Pan: Adds fluid capacity and supports better heat control compared to the RoadReady build.
• Modified Valve Body: Helps improve line pressure and clutch holding capability.
• Revised CDF Drum: Helps address one of the most common 10R80 failure areas with an upgraded retaining design.

These upgrades help improve durability, shift consistency, and holding power for trucks that tow, haul, daily drive, or run added power.

Choose RoadReady if your vehicle is mostly stock and you need a dependable OEM-style replacement for daily driving.

Choose StreetMonster if you tow, haul, run added power, use larger tires, or want an upgraded transmission with stronger holding power and improved durability.

Yes — the StreetMonster 10R80 is the better choice for towing compared to the RoadReady version.

• Upgraded holding power helps support towing and loaded driving.
• The modified valve body helps improve pressure control.
• The deep pan setup adds fluid capacity for the upgraded build.

For best results, make sure the cooling system is clean and in good condition, and follow all programming and relearn procedures after installation.

Yes — proper flashing and TCM relearn is required after installation of any 10R80 transmission.

• You must use a Ford scan tool or equivalent to input the correct solenoid strategy code.
• Follow the relearn procedure to calibrate shift timing and pressure control.

⚠️ This step is essential. Skipping it can lead to poor shifting, fault codes, harsh engagement, or internal damage.

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.