CHEVROLET PERFORMANCE 19368614 Supermatic Automatic 012503139125 4L70-E Transmission

( Brand: Chevrolet Performance ), ( Manufacturer Part Number: 19368614 ), ( Part Type: Transmission ), ( UPC: 012503139125 )

Review CHEVROLET PERFORMANCE Supermatic Four speed Automatic Transmission fits 2WD

The **Chevrolet Performance 19368614 Supermatic 4L70-E 2WD Four-Speed Automatic Transmission** is a precision-engineered powertrain component designed to deliver seamless shifting, enhanced durability, and superior performance in full-size Chevrolet trucks, SUVs, and performance-oriented applications. Built upon the legendary **4L70-E** transmission architecture a four-speed automatic with an overdrive ratio this unit is engineered to handle the demands of modern driving while maintaining the rugged reliability synonymous with Chevrolet s performance heritage. The **Supermatic** designation underscores its advanced electronic controls, which optimize shift quality, torque conversion, and fuel efficiency through adaptive shift algorithms and torque converter clutch modulation. Whether paired with a high-output V8, turbocharged inline-six, or a naturally aspirated engine, this transmission excels in both towing and hauling scenarios, thanks to its robust planetary gearset, reinforced housing, and high-capacity fluid pump. The **2WD (two-wheel drive) configuration** ensures a focused power delivery system, reducing unnecessary weight and complexity while maximizing efficiency for off-road adventures, heavy-duty work, or spirited driving. With its **electronic shift solenoids** and **torque converter with a 1.80:1 stall ratio**, this transmission provides smooth, predictable shifts from launch to cruising while supporting high torque applications without sacrificing responsiveness. Ideal for enthusiasts seeking a balance of performance and practicality, the **19368614 Supermatic 4L70-E** is a standout choice for those who demand a transmission that can keep pace with their ambitions, whether on the highway, the trail, or the track.

### **Pros and Cons of Buying a Chevrolet Performance 19368614 Supermatic 4L70E 2WD Four-Speed Automatic Transmission**

1. **Proven Durability** The **4L70E** is a robust, heavy-duty automatic transmission designed for high torque and demanding applications. It is commonly found in performance trucks, towing setups, and high-performance vehicles, which means it is built to last under heavy loads.

2. **High Torque Handling** This transmission is engineered to handle significant torque loads, making it ideal for performance engines (such as V8s, turbocharged, or supercharged applications). It can manage high horsepower without excessive wear, provided it is properly maintained.

3. **Four-Speed Configuration** The **4L70E** offers a **four-speed gearset**, providing better fuel efficiency in highway driving compared to a three-speed transmission while still delivering strong low-end torque for acceleration.

4. **Compatibility with Performance Modifications** Since this transmission is often used in performance applications, it can accommodate **performance chips, turbochargers, or superchargers** without immediate failure, provided the drivetrain is properly supported.

5. **Aftermarket Support** The **4L70E** has a strong aftermarket presence, meaning you can find **replacement parts, rebuild kits, and performance upgrades** relatively easily. This includes **clutch kits, torque converters, and electronic controls** for tuning.

6. **Towing and Hauling Capability** If you plan to tow heavy loads or haul large payloads, the **4L70E** is a solid choice due to its strength and ability to handle sustained high loads without overheating (when properly cooled).

7. **Electronic Shift Control** Modern versions of this transmission often include **electronic shift solenoids**, allowing for smoother shifts and better integration with engine management systems.

8. **Long-Term Reliability (With Care)** When maintained properly (fluid changes, cooling system upkeep, and proper torque converter sizing), the **4L70E** can last **200,000 miles**, especially in less demanding applications.

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1. **Complexity and Maintenance Costs** The **4L70E** is a **heavy-duty transmission**, meaning repairs can be **expensive** if something fails. Rebuilding or replacing components (such as the **planetary gears, clutch packs, or torque converter**) requires specialized knowledge and tools.

2. **High Fluid and Cooling Requirements** This transmission **generates significant heat**, especially under heavy loads. It requires **high-quality automatic transmission fluid (ATF)** and a **proper cooling system** (radiator, cooler lines, or an aftermarket cooler). Neglecting fluid changes or cooling can lead to **premature failure**.

3. **Torque Converter Sensitivity** The **4L70E** is sensitive to **torque converter size and stall speed**. Using an **incorrectly sized converter** (too small for high horsepower) can cause **stalling, overheating, or transmission damage**. A **performance converter** may be necessary for high-power applications.

4. **Electronic Issues** Some versions of this transmission rely on **electronic shift solenoids and PCM (Powertrain Control Module) control**. If the **PCM fails, wiring is damaged, or solenoids stick**, the transmission may **shift roughly or fail to engage properly**, requiring diagnostic work.

5. **Weight and Size** The **4L70E** is a **heavy transmission**, which can add **significant weight** to a vehicle. This may impact **fuel efficiency** and **handling**, especially in lighter vehicles.

6. **Rebuild Difficulty** While rebuilds are possible, they are **labor-intensive** and often require **specialized tools** (such as a **transmission press**). Many owners opt to send it to a **specialty shop**, increasing costs.

7. **Potential for Slipping or Rough Shifting** If the **clutch packs wear out, fluid is old, or the torque converter is mismatched**, the transmission can **slip gears or shift roughly**, leading to **poor performance and potential damage**.

8. **Not Ideal for Light-Duty Use** While it can work in **light-duty applications**, the **4L70E is overkill** for most daily drivers. It is **best suited for performance, towing, or high-torque applications** using it in a mild setup may lead to **unnecessary wear**.

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The **Chevrolet Performance 19368614 Supermatic 4L70E 2WD four-speed automatic transmission** is a **strong, high-performance transmission** that excels in **towing, hauling, and high-horsepower applications**. It is **durable, torque-friendly, and well-supported by the aftermarket**, making it a **great choice for serious drivers** who need reliability under heavy loads.

However, it is **not a plug-and-play solution** it requires **proper maintenance (fluid changes, cooling, torque converter sizing), and repairs can be costly**. If you are **not planning to use it in a demanding application**, a **lighter-duty transmission** (such as a **6L80 or 6T70**) might be a better fit.

- You have a **high-torque or high-horsepower engine** (V8, turbo/supercharged).

- You **tow heavy loads frequently** or need a **durable transmission for performance driving**.

- You are **prepared for proper maintenance** (fluid changes, cooling system, torque converter sizing).

- You want a **proven, heavy-duty transmission** with strong aftermarket support.

- You are using it in a **light-duty or mild-performance application** (a standard automatic would suffice).

- You **cannot afford or do not want to maintain** a high-performance transmission.

- You are **not comfortable with potential repair costs** in case of failure.

- You need **fuel efficiency** this transmission is **not ideal for daily commuting** without modifications.

**Final Verdict:** The **4L70E is a fantastic choice for performance and towing applications**, but it demands **respect and proper care** to avoid costly failures. If you meet its requirements, it will serve you well for many years. Otherwise, consider a more appropriate transmission for your needs.

Details:

American Express.

part #: 19368614 prices

• $289.99-$4642.33

specifications autotransmissionsgo:

• for models: 2wd
• for makes: Chevrolet
• brand: Chevrolet Performance
• mpn: 19368614
• part type: Transmission
• upc: 012503139125

seller autotransmissionsgo:

• rating: 99.5%
• city: , Ohio
• # reviews: 630361

returns autotransmissionsgo:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

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• service: Standard
• transit: 4-7 Days
• type: Fixed
• cost: $0.00
• class: Standard

general autotransmissionsgo:

• Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission
• condition: New

offer autotransmissionsgo:

• availability: In Stock
• started: May 16, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home

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• wallet: Apple-pay
• credit card: Mastercard

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