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 2–4 weeks.

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

We offer the most comprehensive coverage in the industry:

• StockMonster: 1 Year (Extendable to 4 Years with Extend)
• StreetMonster: 2 Years (Extendable to 5 Years with Extend)
• SportMonster: 3 Years (Extendable to 6 Years with Extend)
• TrackMonster: 1 Year (Extendable to 4 Years with Extend)

Extend warranties are optional add-ons available during checkout.

No — we offer a $299 Flat-Rate One-Way Shipping to any address, commercial or residential.

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

The 10R80 requires Ford MERCON® ULV — an ultra-low viscosity fluid engineered specifically for this transmission’s tight tolerances and fast shift logic.

• We recommend only using MERCON ULV to prevent damage or shifting issues.
• Available at a discounted rate during checkout — same fluid we use on our dyno tests.

Note: Always follow Ford fluid level check procedures, and avoid mixing with other ATF types.

Yes — our 10R80 builds correct several known OEM failure points.

• Heavy-Duty Torque Converter: Reinforced to prevent early lockup failure.
• Deep Sump Aluminum Pan: Improves fluid capacity and cooling performance.
• Revised CDF Drum: Fixes the common sleeve failure with a redesigned heavy-duty solution.

These upgrades ensure long-lasting performance and eliminate the major pain points that plague stock units.

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 new 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, 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 $299 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.