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IF BUNDLED WITH FLUID and EXTEND! or $99 WITH JUST FLUID
Unleash the classic power of the SportMonster TH350 transmission—a 3-speed automatic built for reliability, performance, and versatility. Perfect for vintage cars, muscle builds, and street rods, the TH350 delivers smooth, consistent shifts and is designed to handle demanding applications. With its compact design and durable construction, this transmission is a favorite among enthusiasts for its strength and adaptability.
Engineered for high performance and daily driving, the SportMonster TH350 transmission ensures dependable power and long-lasting durability, making it the ultimate upgrade for your classic ride. Built tough, designed to dominate!
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.