fits make: Toyota. year: 1980–1983.

( Manufacturer Part Number: 431-56418 ), ( Type: Driveshaft ), ( Years: 1980 1981 1982 1983 80 81 82 83 ), ( Oe/oem Part Number: 3711035121 ), ( Universal Fitment: No ), ( Placement On Vehicle: Rear ), ( Transmission Type: Manual )
The **Toyota 431-56418 Rear Drive Shaft (1980 1983, 4x2, SWB)** is a precision-engineered component designed specifically for Toyota s 4-cylinder, rear-wheel-drive (RWD) vehicles from the early 1980s, including models like the **Corolla, Corolla Levin (AE86), Sprinter Trueno (AE86), and early-generation Celica (T23)**. This drive shaft is a critical part of the vehicle s drivetrain, transmitting power from the transmission to the rear axle while accommodating the unique suspension geometry and wheelbase of the **Short Wheelbase (SWB)** configuration. Crafted from high-strength steel, the shaft features a robust **slip yoke** at the transmission end, allowing for slight movement as the suspension compresses and extends, ensuring smooth power transfer even under dynamic driving conditions. The **constant velocity (CV) joints** at both ends one universal joint (U-joint) at the transmission end and a CV joint at the axle end are designed to handle the angular variations of the rear suspension, reducing wear and preventing binding during sharp turns or rough road conditions. The **balancing** of this drive shaft is meticulously calibrated to minimize vibration, a common concern in RWD vehicles where even slight imbalances can lead to discomfort or premature wear on the universal joints and bearings. This particular part is a **direct-fit replacement**, compatible with the **1980 1983 model years** and the **4x2 (RWD) drivetrain**, making it an essential upgrade for restorers, tuners, or enthusiasts looking to restore original handling dynamics or improve reliability in their classic Toyota. Whether used in a **stock restoration, drift setup, or high-performance build**, this drive shaft ensures durability and performance, bridging the gap between the engine and wheels with efficiency and precision.
### Pros and Cons of Buying a Toyota 431-56418 Rear Drive Shaft (1980 1983, 4x2, SWB)
#### **Pros:**1. **Reliability** Toyota parts, especially those from the 1980s, are known for durability and longevity. The 431-56418 is a standard rear drive shaft for Toyota pickup trucks (like the T100 or Hilux), which were built to last with proper maintenance.
2. **Compatibility** This part fits a wide range of Toyota vehicles from that era, including the **T100 (SWB)**, **Hilux (SWB)**, and other rear-wheel-drive models. If you re restoring or repairing a classic Toyota, this is likely the correct part.
3. **Ease of Installation** Being a standard OEM component, it should fit without major modifications, assuming the vehicle s drivetrain and mounting points are intact.
4. **Cost-Effective Replacement** Compared to rebuilding or sourcing a used shaft, buying a new or reconditioned OEM part is often more affordable and reliable than aftermarket alternatives.
5. **Availability of Support** Toyota parts are widely available through dealerships, specialty shops, and online marketplaces (e.g., eBay, RockAuto, or Toyota parts distributors). This makes sourcing and installation easier.
6. **Long-Term Performance** If the shaft is in good condition, it can last for decades with minimal wear, reducing the need for frequent replacements.
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#### **Cons:**1. **Age and Wear** If the shaft is from a used or salvaged vehicle, it may have hidden damage (bent yokes, cracked splines, or worn bearings). Always inspect for rust, cracks, or excessive play.
2. **Rust and Corrosion** Older Toyota parts, especially those exposed to harsh conditions, can suffer from rust, which weakens structural integrity. A thorough cleaning and inspection are necessary.
3. **Limited Aftermarket Support** Unlike newer vehicles, finding specialized tools or diagnostic help for 1980s Toyota drivetrains can be harder. You may need to rely on vintage auto mechanics.
4. **Potential for Counterfeit Parts** Some online sellers may offer fake or re-machined parts that don t meet OEM standards. Buying from reputable dealers (e.g., Toyota-authorized or well-reviewed sellers) is crucial.
5. **Installation Challenges** If the vehicle s drivetrain has been modified or the mounts are worn, installing the shaft may require additional labor or adjustments.
6. **Depreciation Risk** If you re buying a used shaft from a salvage yard, its value may be low, and you might end up paying more for labor than the part itself is worth.
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### **Conclusion:**The **Toyota 431-56418 rear drive shaft (1980 1983, 4x2, SWB)** is a **solid, reliable choice** for restoring or maintaining a classic Toyota pickup or Hilux. Its **durability, compatibility, and ease of installation** make it a practical option, especially for enthusiasts who prioritize OEM quality. However, **buying used requires careful inspection** to avoid rust, damage, or counterfeit parts. If budget allows, a **new or reconditioned OEM part** is the safest bet.
For **best results**, purchase from a **trusted dealer** (preferably with a warranty) and have a mechanic verify its condition before installation. If you re on a tight budget, a **used shaft from a known-good source** (e.g., a salvage yard with a reputation for quality) can work, but always test it for smooth operation and structural integrity.
### **Recommendation:**- **If restoring a classic Toyota:** Buy a **new or reconditioned OEM shaft** from a Toyota parts distributor or dealership to ensure reliability.
- **If on a budget:** Source a **used shaft from a reputable salvage yard**, inspect it thoroughly for damage, and test it before installation.
- **Avoid:** Purchasing from unverified sellers or accepting a shaft without a visual inspection, as rust or wear could lead to premature failure.
Ultimately, this part is a **wise investment** for Toyota owners who value longevity and performance in their vehicles.
Fits the following: 1980 - 1983 Toyota Pickup 4x2, 431-56418 STK 6X0381 LOC 6A29 FLOR -M.O-CS- 4x2.