1. Torque Converters For Sale
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  3. AC DELCO 23759VCMS

AC DELCO 23759VCMS Auto Trans Torque Converter

fits make: Chevrolet. year: 1985–1986.

23759vcms Ac Delco For 1985-1986 Chevrolet C10 Auto Trans Torque Converter

( Brand: Ac Delco ), ( Manufacturer Part Number: 23759VCMS ), ( Part Type: Torque Tran Converter ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: Automatic Transmission Torque Converter Remanufactured; Rem. ), ( Years: 1985 1986 ), ( Application: Chevrolet C10 Auto Trans Torque Converter ), ( Product Name 2: Automatic Transmission Torque Converter ), ( Cs-sku: 400 )

Review AC DELCO Chevrolet Auto Trans Torque Converter fits C10 1985–1986

The **AC Delco 23759VCMS** is a high-performance, direct-fit torque converter designed specifically for the **1985-1986 Chevrolet C10 pickup trucks** equipped with an **automatic transmission**, ensuring seamless integration with the **350 cubic-inch V8 engine** (commonly paired with the **THM725C or THM725C1** transmission). Engineered to deliver superior torque multiplication and fluid dynamics, this torque converter is built with precision to enhance acceleration, improve shifting efficiency, and extend the lifespan of your transmission components. Crafted from durable **cast aluminum** and reinforced with high-quality **stamped steel components**, the 23759VCMS features a **spiral-groove stator** that optimizes fluid flow, reducing slippage and maximizing power transfer from the engine to the wheels. Its **precision-balanced impeller and turbine** ensure smooth operation under heavy loads, whether hauling heavy payloads, towing substantial trailers, or navigating steep inclines. The converter s **sealed internal bearings** and **optimized stall speed** (typically around **1,800 2,200 RPM**) provide a balance between responsiveness and fuel efficiency, making it ideal for both daily driving and demanding applications. Built to meet or exceed **OEM specifications**, this torque converter is a direct replacement for the stock unit, eliminating the need for transmission modifications while offering improved durability and performance. Whether you re restoring a classic C10 for weekend cruising or upgrading a workhorse for heavy-duty use, the **AC Delco 23759VCMS** delivers the reliability and power you need to keep your truck performing at its best.

The **AC Delco 23759VCMS** is a torque converter designed for the **1985-1986 Chevrolet C10** with an automatic transmission. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the AC Delco 23759VCMS**

1. **OEM Quality and Fitment** AC Delco is a trusted brand that produces parts designed to meet or exceed factory specifications. This converter is engineered to fit the 1985-1986 C10 s transmission system precisely, reducing the risk of compatibility issues.

2. **Durability and Performance** The converter is built with high-quality materials, including a sturdy housing and a robust impeller, which can handle the torque demands of the GM small-block V8 engines commonly found in these trucks. It is designed to provide smooth engagement and efficient fluid circulation, improving transmission performance.

3. **Compatibility with Electronic Controls** The 1985-1986 C10 with an automatic transmission often uses electronic shift solenoids or pressure controls. The AC Delco converter is designed to work seamlessly with these systems, ensuring proper lockup clutch operation (if equipped) and smooth shifting.

4. **Warranty and Reliability** AC Delco parts typically come with a warranty (varies by retailer), offering some protection against manufacturing defects. Additionally, as an OEM or high-quality aftermarket part, it is less likely to fail prematurely compared to cheaper alternatives.

5. **Ease of Installation** The converter is straightforward to install, requiring only basic tools and mechanical knowledge. It follows the same mounting and fluid routing as the original, making it a drop-in replacement without extensive modifications.

6. **Support for High-Torque Applications** If the truck is equipped with a performance engine (e.g., a 350 or 400 CID with a manual or performance automatic), this converter can handle the increased torque better than some aftermarket budget options, provided the transmission is in good condition.

7. **Availability of Replacement Parts** AC Delco converters are widely available through auto parts stores, online retailers, and GM dealerships. If issues arise, replacement parts or a new converter can be sourced relatively easily.

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### **Cons of the AC Delco 23759VCMS**

1. **Cost** While not excessively expensive, the AC Delco converter is more costly than some generic or no-name aftermarket alternatives. For budget-conscious buyers, this may be a drawback, especially if the converter is only failing due to normal wear rather than a catastrophic failure.

2. **Potential for Early Wear in Aggressive Driving** If the truck is used for towing, heavy hauling, or aggressive driving (e.g., frequent hard launches or high-RPM shifts), the converter may wear out faster than expected. The stock converter is not designed for extreme performance applications without additional modifications (e.g., a heavier-duty converter or transmission rebuild).

3. **Lockup Clutch Issues** Some owners report that the lockup clutch in this converter can fail prematurely, especially if the transmission fluid is not changed regularly or if the fluid is degraded. This can lead to poor fuel economy and rough shifting.

4. **Limited Customization** Unlike aftermarket converters designed for performance applications, the AC Delco 23759VCMS does not offer customizable stall speeds or torque ratings. If you re looking to modify the converter for better performance (e.g., for a supercharged engine), you ll need to source a different part.

5. **Dependence on Transmission Health** The converter s longevity is directly tied to the condition of the transmission. If the transmission is worn (e.g., sluggish shifts, leaking seals, or damaged planetary gears), replacing just the converter may not fully resolve performance issues. A transmission rebuild may be necessary for optimal results.

6. **Mixed Reviews on Lockup Engagement** Some users report inconsistent lockup clutch engagement, particularly in cold weather or under light loads. This can lead to minor drivability issues, such as a slight hesitation during acceleration.

7. **Potential for Fluid Contamination** If the transmission fluid was not changed regularly or if the converter was previously installed in a truck with a leaking seal, the new converter may be contaminated with old fluid or debris. This can reduce its lifespan unless the transmission is flushed thoroughly before installation.

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### **Conclusion**

The **AC Delco 23759VCMS** is a solid choice for replacing a failing torque converter in a **1985-1986 Chevrolet C10 with an automatic transmission**, particularly if you prioritize reliability, OEM fitment, and ease of installation. It is well-suited for everyday driving, light towing, and standard performance applications. However, it is not ideal for extreme performance or heavy-duty use without additional modifications.

The converter s strengths lie in its durability, compatibility with electronic controls, and widespread availability, while its weaknesses include a higher cost, potential lockup clutch issues, and sensitivity to transmission health. If your truck s transmission is in good condition and you re not pushing it to extreme limits, this converter will likely serve you well for thousands of miles.

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### **Recommendation**

1. **If your primary concern is reliability and you want an OEM-quality replacement:**

- **Buy the AC Delco 23759VCMS.** Ensure you also replace the transmission fluid and filter during installation to maximize its lifespan. Consider using a high-quality automatic transmission fluid (e.g., Dexron VI or a synthetic blend) for better protection.

2. **If you re on a tight budget or need a budget-friendly option:**

- Compare prices with other reputable brands like **Mopar (for Chrysler-based transmissions), Ford Motorcraft, or high-end aftermarket converters like **Haynes or Carter**. However, be cautious of extremely cheap converters, as they may lack durability.

3. **If your truck is used for towing or performance driving:**

- Consider upgrading to a **heavier-duty converter** (e.g., a **TorqueFlite or TH350/400 converter with a higher stall speed**) or a **performance aftermarket converter** designed for your specific engine and application. Consult with a transmission specialist to ensure compatibility.

4. **If the transmission is worn or showing signs of failure:**

- Do not install just the converter. A **transmission rebuild or fluid exchange** is recommended to ensure the converter operates correctly and lasts longer.

5. **Before purchasing:**

- Verify the converter s part number matches your transmission type (e.g., **TH350, TH400, or 700R4** if applicable). Double-check the year and engine configuration of your C10 to ensure the correct fitment.

- Check reviews or forums (e.g., **Chevy Truck Forum, Reddit s r/chevrolet, or TruckForum**) for user experiences with this specific converter in your application.

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**Final Verdict:** The **AC Delco 23759VCMS** is a **good to excellent** choice for most 1985-1986 C10 owners seeking a reliable, drop-in replacement. With proper maintenance, it will provide years of trouble-free service. However, if your truck sees heavy use or you re modifying the engine, weigh the cost against a more robust converter.

Details:

Some GM Genuine Parts may have formerly appeared as AcDelco Original Equipment OE. Parts Geek - For 1985 - 1986 Chevrolet C10 Auto Trans Torque Converter AC Delco 23759VCMS: Review Fitment Notes to Ensure Proper Fit condition: RemanufActured Brand: Notes: Automatic Transmission RemanufActured; RemanufActured-NOT FOR SALE WHERE IMPORTS ARE RESTRICTED Meets or Exceeds OEM Specifications: Yes Features: GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, Cadillac vehicle. GM regularly updates production and service part designs to integrate new materials technologies.

part #: 23759vcms price

  • $445.71

specifications torquconv:

  • for makes: Chevrolet
  • for years: 1985-1986
  • brand: Ac Delco
  • mpn: 23759vcms
  • part type: Torque Tran Converter
  • manufacturer warranty: 12 Month Warranty
  • notes: Automatic Transmission Torque Converter Remanufactured; Rem.
  • years: 1985 1986
  • application: Chevrolet C10 Auto Trans Torque Converter
  • product name 2: Automatic Transmission Torque Converter
  • cs-sku: 400

offer torquconv:

  • sold: 0
  • quantity: 1
  • availability: In Stock
  • options: Ship-to-home
  • started: April 18, 2026

shipping torquconv:

  • class: Standard
  • cost: $0.00
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general torquconv:

  • condition: RemanufActured
  • Car Truck Parts Accessories > Transmission Drivetrain > Torque Converters

seller torquconv:

  • city: East Walpole, MassAchusetts
  • # reviews: 328936
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for makes: chevrolet, for years: 1985-1986, part type: torque tran converter, manufacturer warranty: 12 month warranty, notes: automatic transmission torque converter remanufactured; rem., years: 1985 1986, application: chevrolet c10 auto trans torque converter, product name 2: automatic transmission torque converter, cs-sku: 400,
category: auto parts > car truck parts accessories > transmission drivetrain > torque converters, sku: 7297803065788603,
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1 offer $445.71 USD
  • Remanufactured. Offer #1 priced at $445.71 + $0.00 shipping estimate = $445.71* total. Notes: Automatic Transmission Torque Converter -- Remanufactured; Remanufactured-NOT FOR SALE WHERE IMPORTS ARE RESTRICTED.FREE SHIPPING

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