TH350

20235022LS

SportMonster Chevy TH350 Transmission & Torque Converter

$3,048.00 USD

$3,209.00 USD
SALE 5% OFF
50302143856949
CD20235022LS
Requires $600.00 USD Core Fee
HIGH DEMAND!

ORDER NOW AND WE'LL

PRIORITIZE YOUR SHIPMENT

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FREE SHIPPING

IF BUNDLED WITH FLUID and EXTEND! or $99 WITH JUST FLUID

PRODUCT OPTIONS
Questions? Call Us 800-708-0087
Features
  • Master Overhaul Kit: Includes all essential components to restore the transmission to like-new condition, ensuring long-term reliability and performance.
  • Shift Correction Kit: Improves shift quality, timing, and responsiveness for a smoother and more controlled driving experience.
  • New Pump Components: Provides consistent fluid pressure for reliable operation and extended durability under heavy use.
  • HD Outer Intermediate Sprag Race: Reinforced for increased strength and durability, preventing common failure points under high torque loads.
  • New Modulator: Ensures precise control over shifting for smoother and more efficient operation.
  • Teflon Sealing Ring Kit: Reduces leaks and improves sealing, enhancing overall efficiency and reliability.
  • Stage-1 Clutches: High-performance clutches provide greater torque-handling capability and improved durability.
  • Kolene Steels: Heat-treated steel plates resist wear and improve friction consistency for longer-lasting performance.
  • New Separator Plate: Improves fluid routing for consistent, reliable shifts and better performance.
  • New Manual Shift Shaft: to prevent case wear and leaking.
  • 5 Clutch Direct Drum: Increases holding power for improved performance and reliability in high-torque applications.
  • PREVENT TRANSMISSION FAILURE: Watch our step-by-step installation video https://monstertransmission.com/pages/how-to-properly-install-a-transmission
ABOUT THIS PRODUCT

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!

FLUID AMOUNT

  • 11 Quarts Of Dexron VI Full Synthetic

INSTALL TIME

  • 7 Hours

WARRANTY

Note

  • 3 Year Warranty Unlimited Miles
Videos
Customer Reviews
Frequently Asked
When Will My Transmission Ship?

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.

What Is the Warranty?

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.

Is Shipping Cheaper if I Use a Commercial Address?

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.

Does this Transmission include Fluid?

No — fluid must be purchased separately. We offer special discounted prices and even cheaper shipping options when you bundle with our fluid at checkout.

How do I Return my Old Transmission Core?

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.