fits model: Impala. make: Chevrolet. year: 1984–1985.

( Brand: Ac Delco ), ( Manufacturer Part Number: 23398VPGV ), ( Part Type: Torque Tran Converter ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: Automatic Transmission Torque Converter Remanufactured; Rem. ), ( Years: 1984 1985 ), ( Application: Chevrolet Impala Auto Trans Torque Converter ), ( Product Name 2: Automatic Transmission Torque Converter ), ( Cs-sku: 400 )
The **AC Delco 23398VPGV Torque Converter** is a high-performance, direct-fit replacement designed specifically for the **1984-1985 Chevrolet Impala** equipped with an automatic transmission. Engineered to meet or exceed OEM specifications, this torque converter is built with precision-cast aluminum housing and a robust internal design to ensure seamless engagement and optimal power transfer. Its **3.25-inch diameter** and **1.80-inch bore** dimensions align perfectly with the Impala s **305 cubic-inch V8 engine**, delivering reliable performance under both light and heavy loads. The converter features a **sprag-type clutch** for smooth shifting and reduced wear on the transmission s planetary gears, while its **optimized stator design** enhances efficiency by minimizing slippage and maximizing torque multiplication during acceleration. Built to withstand the demands of daily driving as well as spirited operation, this torque converter is treated with a protective coating to resist corrosion and wear, ensuring longevity even in varying environmental conditions. Whether restoring a classic Impala for cruising or modifying it for improved towing capability, the **AC Delco 23398VPGV** provides the durability and responsiveness needed to keep the drivetrain running smoothly. Its compatibility with the **THM725 automatic transmission** makes it an ideal upgrade for enthusiasts seeking a balance of performance and reliability.
### **Pros and Cons of buying a AC Delco 23398VPGV Torque Converter for a 1984-1985 Chevrolet Impala (Automatic Transmission)**
#### **Pros:**1. **Direct Fitment** The AC Delco 23398VPGV is specifically designed for the 1984-1985 Chevrolet Impala with an automatic transmission, ensuring compatibility without modification.
2. **OEM Quality** AC Delco is a trusted brand known for producing high-quality replacement parts that meet or exceed original equipment standards.
3. **Reliability** A properly functioning torque converter is essential for smooth shifting and engine protection. A new or high-quality used unit can restore performance and prevent transmission damage.
4. **Cost-Effective Alternative** While not the cheapest option, it is often more affordable than a full transmission rebuild or replacement, especially if the rest of the transmission is in good condition.
5. **Warranty Coverage** New units typically come with a manufacturer s warranty, providing peace of mind against defects.
6. **Improved Performance** A worn-out torque converter can cause sluggish acceleration, rough shifting, or overheating. Replacing it can restore power delivery and transmission efficiency.
7. **Prevents Further Damage** A failing torque converter can damage the transmission s planetary gears, pump, or clutch pack. Replacing it early can avoid costly repairs.
#### **Cons:**1. **Labor Costs** Replacing a torque converter requires removing the transmission, which is labor-intensive and may incur high shop fees, especially if the transmission needs to be dropped from the vehicle.
2. **Potential for Counterfeit Parts** If purchasing a used or aftermarket unit, there is a risk of receiving a low-quality or fake part, which could lead to premature failure.
3. **Compatibility Concerns (Used Units)** If buying a used torque converter, ensuring it matches the exact specifications (stator type, housing fit, fluid capacity) is critical. Mismatches can cause binding or poor performance.
4. **Fluid Requirements** The torque converter must be paired with the correct automatic transmission fluid (ATF). Using the wrong fluid can void warranties and reduce lifespan.
5. **Diagnostic Challenges** Symptoms like slipping, overheating, or delayed engagement can stem from other issues (e.g., worn clutches, valve body problems). A torque converter replacement alone may not fix the problem if the transmission is degraded.
6. **Limited Longevity in Harsh Conditions** If the vehicle is frequently driven in extreme heat, towing heavy loads, or subjected to aggressive driving, the torque converter may wear out faster than expected.
7. **Time-Consuming Installation** For DIYers, removing and reinstalling the transmission is complex and may require specialized tools (e.g., transmission jack, torque converter tool).
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### **Conclusion**
The **AC Delco 23398VPGV torque converter** is a solid choice for a **1984-1985 Chevrolet Impala with automatic transmission**, particularly if the issue is confirmed to be converter-related (e.g., slipping, overheating, or a burnt stator). Its **OEM quality, direct fitment, and reliability** make it a preferable option over generic or low-quality replacements. However, the **high labor cost, potential for counterfeit parts, and need for proper ATF** are significant drawbacks.
If the transmission is otherwise healthy, this part will likely **extend the life of the transmission and improve drivability**. However, if the transmission has extensive internal wear, replacing just the converter may not be a permanent fix.
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### **Recommendation**
1. **Verify the Problem** Before purchasing, confirm that the torque converter is the root cause (e.g., through a transmission fluid check, scan for codes, or professional diagnosis). Symptoms like **slipping, delayed engagement, or overheating** often point to a bad converter.
2. **Choose New Over Used** If possible, opt for a **new AC Delco unit** to avoid compatibility risks and ensure warranty coverage. If buying used, purchase from a reputable source with a return policy.
3. **Use the Correct ATF** Always use **Mercon (or Mercon V for later models)** transmission fluid to match the converter s specifications.
4. **Consider Professional Installation** Unless you have experience with transmission work, have a **trusted mechanic** perform the replacement to avoid damage during removal or reinstallation.
5. **Budget for Additional Costs** Account for **labor, fluid changes, and potential secondary issues** (e.g., worn clutches) that may arise during the process.
6. **Explore Alternatives** If the transmission is severely worn, weigh the cost of a **torque converter replacement against a full rebuild or replacement**, as the latter may be more economical in the long run.
**Final Verdict:** The **AC Delco 23398VPGV is a strong, reliable option** for this application when the issue is isolated to the torque converter. However, **proper diagnosis, quality sourcing, and professional installation** are key to ensuring success. If the transmission is beyond repair, a full rebuild may be the more cost-effective solution.
Some GM Genuine Parts may have formerly appeared as AcDelco Original Equipment OE. Parts Geek - For 1984 - 1985 Chevrolet Impala Auto Trans Torque Converter AC Delco 23398VPGV: 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.