TOYOTA 37100-14660 Auto Driveshaft Automatic Transmission 37100-14600 MK3 A340

( Manufacturer Part Number: 37100-14660 ), ( Type: Driveshaft ), ( Ipn: 37100-14600 ), ( Fitment Type: Direct Replacement ), ( Drive Type: Rwd ), ( Placement On Vehicle: Lower ), ( Transmission Type: Automatic )

Review TOYOTA Mk3 Auto Driveshaft Oem Automatic Transmission fits SUPRA TURBO

The **Toyota 37100-14660 Supra MK3 Turbo Automatic Driveshaft (A340)** is a meticulously engineered component designed exclusively for the legendary **Toyota MR2 Turbo (A80)** and **Supra MK3 (A80)** models, particularly those equipped with the **3S-GE engine and the A340 5-speed automatic transmission**. This driveshaft represents a critical link in the powertrain, transmitting power from the transmission to the rear wheels with precision and efficiency, ensuring optimal performance, drivability, and longevity. Crafted from high-grade **steel alloys**, this driveshaft is built to withstand the demands of aggressive driving, high torque output from the turbocharged engine, and the dynamic stresses of both street and track use. Its robust construction features **heat-treated shafts** to prevent warping or bending under extreme loads, while the **splined joints** are precision-machined for seamless engagement with the transmission output shaft and differential input flange, minimizing power loss and ensuring smooth operation. The **universal joint (U-joint) bearings** are sealed with high-quality grease and protected by durable rubber boots, safeguarding against contamination and wear, even in harsh conditions. This driveshaft is a direct-fit replacement for the original Toyota part, maintaining the exact dimensions and mounting points required for a perfect installation, whether in a restored classic or a modified performance machine. Whether you're restoring a vintage Supra to its former glory, upgrading a turbocharged project car, or simply replacing a worn-out OEM component, this driveshaft delivers the reliability and performance expected from Toyota s high-performance lineup. Its compatibility with aftermarket upgrades, such as **A340 transmission modifications, limited-slip differentials, or performance exhaust systems**, makes it an essential part for enthusiasts seeking to enhance both the power delivery and durability of their A80 Supra or MR2 Turbo.

### **Pros and Cons of Buying a Toyota 37100-14660 Supra MK3 Turbo Auto Driveshaft (A340 Transmission)**

1. **Reliability of Toyota Parts** Toyota is known for durable, high-quality components, and this driveshaft is designed to withstand the stresses of a turbocharged engine. The A340 transmission is also a robust automatic gearbox, well-suited for high-performance applications.

2. **Performance Fitment** The MK3 Supra (especially the turbo models) is a sought-after performance car, and this driveshaft is specifically engineered to handle the extra torque and power output of the turbocharged 3S-GE engine. It helps maintain drivetrain integrity under acceleration and load.

3. **Compatibility with Modifications** If you plan to further modify your Supra (e.g., bigger turbo, upgraded exhaust, or power upgrades), this driveshaft is a solid choice because it s built to handle increased stress. It s also a common aftermarket part, meaning replacements or upgrades are easier to source.

4. **Durability for Daily Driving** While the MK3 Supra is a classic, many owners use them for daily driving. This driveshaft, combined with the A340 transmission, provides a balance of performance and reliability for regular use, especially if maintained properly.

5. **Aftermarket Support** The 37100-14660 is a well-documented part, meaning there are guides, forums, and experienced mechanics who can assist with installation, troubleshooting, or upgrades. This reduces the risk of unexpected failures due to lack of knowledge.

6. **Cost-Effective Upgrade** Compared to building a custom driveshaft, this OEM-replacement part is relatively affordable and avoids the potential pitfalls of aftermarket mismatches. It s a straightforward way to ensure drivetrain longevity without excessive cost.

7. **A340 Transmission Strength** The A340 is a heavy-duty automatic transmission designed for high-torque applications. It s more robust than the stock U340E, making it a better choice if you plan to push the car harder or if the original transmission has been abused.

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1. **Potential for Wear Over Time** Like any driveshaft, this part is subject to wear, especially if the car is driven aggressively or if maintenance is neglected. The turbocharged MK3 Supra generates significant torque, which can accelerate wear on the driveshaft, universal joints, and transmission over time.

2. **Installation Complexity** Replacing or installing this driveshaft requires mechanical skill, especially if you re unfamiliar with Supra drivetrain work. It involves disconnecting the transmission, removing the rear subframe, and ensuring proper alignment. DIY installation can be challenging, and mistakes may lead to drivetrain damage.

3. **Compatibility with Stock or Modified Suspensions** If your Supra has been lowered or modified with aftermarket suspension components, the driveshaft angles may not align perfectly. This can cause binding, excessive wear, or even failure. A custom driveshaft may be necessary if the geometry is significantly altered.

4. **A340 Transmission Limitations** While the A340 is stronger than the stock transmission, it s not infinitely upgradeable. If you plan to add extreme power (e.g., 500 hp), you may need additional modifications like a limited-slip differential, upgraded clutch, or even a manual transmission conversion. The A340 is a good starting point but may not be sufficient for extreme builds.

5. **Availability and Lead Times** Toyota parts, especially for older models like the MK3 Supra, can sometimes have long lead times or be discontinued. While this part is common, sourcing it may require checking multiple suppliers, which can be inconvenient.

6. **Cost of Associated Upgrades** If you re replacing the driveshaft, it s often a good time to inspect or upgrade other drivetrain components (e.g., universal joints, CV joints, transmission fluid, or mounts). These additional costs can add up, making the overall project more expensive than initially anticipated.

7. **Potential for Mismatched Parts** If the driveshaft is sourced from a non-OEM supplier, there s a risk of receiving a lower-quality or incorrectly balanced part. Always verify the part s authenticity and compatibility before purchasing to avoid performance or safety issues.

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The **Toyota 37100-14660 Supra MK3 Turbo Auto Driveshaft (A340 Transmission)** is a solid choice for owners looking to upgrade or replace their driveshaft, especially if they plan to maintain or enhance the car s performance. It offers a balance of reliability, durability, and compatibility with the turbocharged 3S-GE engine. However, it s not a "set-and-forget" solution proper installation, regular maintenance, and consideration of suspension modifications are critical to ensuring longevity.

- Owners who want a **direct OEM replacement** without compromising on quality.

- Those who plan to **drive the car daily** while still enjoying performance.

- Enthusiasts who want a **cost-effective upgrade** before considering more extensive modifications.

- Owners who lack mechanical experience and aren t willing to invest in professional installation.

- Those planning **extreme power upgrades** (500 hp) without additional drivetrain reinforcement.

- Buyers who prioritize **minimalist or stock-like reliability** over performance-focused durability.

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If you re replacing your driveshaft due to wear, damage, or as part of a performance upgrade, the **37100-14660 driveshaft paired with the A340 transmission** is a **strong, practical choice**. Here s how to proceed:

1. **Verify Compatibility** Ensure your Supra s suspension and drivetrain geometry align with the driveshaft. If you ve modified the suspension, consider a custom driveshaft to avoid binding.

2. **Source from a Reputable Supplier** Purchase from a trusted Toyota parts dealer or a well-reviewed aftermarket supplier to avoid counterfeit or low-quality parts.

3. **Plan for Professional Installation** If you re not experienced with Supra drivetrain work, have a mechanic with Supra experience install it to avoid misalignment or damage.

4. **Maintain Regularly** Follow a maintenance schedule, including checking universal joint wear, driveshaft balance, and transmission fluid changes. Use high-quality lubricants and fluids.

5. **Consider Additional Upgrades** If you re pushing the car harder, pair this with a **limited-slip differential, upgraded mounts, or a torque converter upgrade** for the A340 to handle increased power.

6. **Budget for Contingencies** Account for potential additional costs, such as suspension adjustments, transmission fluid flushes, or extra parts needed during installation.

**Final Verdict:** This driveshaft is a **wise investment** for MK3 Supra owners who want to balance reliability and performance without overcomplicating their build. It s a **proven, high-quality part** that will serve you well if installed and maintained correctly. However, if your goals involve extreme power or you re unsure about installation, consult with a Supra specialist to explore all options.

Details:

This driveshaft was from an 88 Turbo automatic Supra. I would recommend changing the carrier bearing as this one is old and worn. There is some rust on the yoke. This driveshaft is in average condition it has some surface rust.

part #: 3710014660 prices

• $203.63-$620.10

specifications universajoin:

• for models: Turbo, Supra
• for makes: Toyota
• mpn: 37100-14660
• type: Driveshaft
• ipn: 37100-14600
• fitment type: Direct Replacement
• drive type: Rwd
• placement on vehicle: Lower
• transmission type: Automatic

payments universajoin:

• credit card: Mastercard
• other
• wallet: Apple-pay

returns universajoin:

• policy: No Returns

offer universajoin:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: February 4, 2026
• sold: 0

general universajoin:

• condition: Used
• Transmission Drivetrain > Driveshafts Parts > Driveshafts

shipping universajoin:

• type: Calculated
• service: USPS Ground Advantage
• transit: 3-9 Days
• carrier: USPS
• cost: $0.00
• class: Standard

seller universajoin:

• # reviews: 1034
• rating: 100.0%
• city: Oakland, Maryland

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