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TRANSMISSION
TORQUE CONVERTER
The 66RFE transmission shares many pain points with its 68RFE sibling—valve body cross-leaks, worn SSV (Solenoid Switch Valve) bores, and overdrive (OD) clutch failure that shows up as slip, heat, and early wear. The Monster StreetMonster 66RFE fixes the root causes with an upgraded valve body featuring a billet steel–sleeved SSV bore for tight, leak-free operation and a gasketed separator plate that prevents cross-leaks from bleeding off OD apply pressure. Paired with a Heavy-Duty torque converter, this build delivers cooler temps, firmer apply, and long-term reliability for stock to mildly upgraded HEMI-powered Ram 2500/3500 trucks.
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.
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.