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IF BUNDLED WITH FLUID and EXTEND! Covers One Way Only
Conquer any challenge with the StreetMonster 68RFE transmission—a 6-speed automatic powerhouse built for heavy-duty trucks and high-torque diesel engines. Designed for rugged durability and smooth performance, the 68RFE is your go-to solution for towing, hauling, and demanding workloads. Engineered with advanced technology and reinforced internals, this transmission delivers long-lasting reliability and efficient power delivery, making it the ultimate upgrade for your truck.
Note
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:
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.
Our 68RFE transmissions are built to handle significantly more power than stock — each tier is designed for a different level of performance:
All units are dyno-tested and engineered for long-term durability and consistent performance.
All of our 68RFE builds include a Heavy Duty billet multi-disc torque converter.
This converter upgrade is essential for both towing and high-horsepower applications.
Yes — all critical electronics and sensors are either replaced or fully remanufactured during our build process:
This ensures precise shifting, consistent pressure control, and full communication with your vehicle’s ECM/TCM.
Yes — proper tuning is essential for the 68RFE to perform correctly and avoid premature wear or failure.
⚠Without proper tuning, you may experience harsh shifts, flare, or limp mode. We strongly recommend professional calibration.
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:
Please Note:
Our goal is to make this process as seamless as possible — if you have questions about your core return, just give us a call.