CHEVROLET 85550978 Rear Left Transmission Mount 6.2L

( Brand: Chevrolet ), ( Manufacturer Part Number: 85550978 ), ( Part Type: Transmission Mount ), ( Oe/oem Part Number: 2021 2022 2023 2024, 2025 ), ( Id: 1bd991ef-865b-44ce-b9ef-c404f9ec40cc )

Review CHEVROLET Chevy 6.2l Rear Left Transmission Support Mount fits CORVETTE C8 RWD 2020–2026

The **Chevrolet 85550978 2020 2026 Corvette C8 RWD 6.2L Rear Left Transmission Mount** is a precision-engineered, high-performance suspension component designed exclusively for the sixth-generation Chevrolet Corvette C8 Stingray, specifically tailored for the rear-wheel-drive (RWD) models equipped with the iconic **6.2L LT2 high-performance V8 engine**. This mount is a critical structural and functional element of the vehicle s drivetrain system, ensuring optimal alignment, vibration dampening, and load-bearing support between the transmission and the chassis. Crafted from durable, high-strength materials, including reinforced polymer composites and precision-machined metal inserts, this mount is engineered to withstand the intense forces generated by the C8 s aggressive driving dynamics, including high-speed cornering, aggressive acceleration, and the relentless torque output of the LT2 engine. The design incorporates a robust, multi-point attachment system, featuring a combination of bolted and clamped interfaces that minimize flex and maintain precise transmission positioning, thereby enhancing driveline efficiency and reducing unwanted movement that could lead to drivetrain fatigue or misalignment over time. Ideal for both original equipment replacement (OEM) and performance-focused modifications, this mount is a direct-fit solution that adheres to Chevrolet s stringent engineering standards, ensuring seamless integration with the C8 s advanced suspension geometry and drivetrain architecture. Whether installed during routine maintenance, a restoration project, or as part of a high-performance upgrade, this transmission mount is a testament to Chevrolet s commitment to delivering uncompromising performance and reliability in one of the most exhilarating sports cars of the decade.

### **Pros and Cons of Buying a 2020-2026 Chevrolet Corvette C8 RWD (6.2L) Rear Left Transmission Mount (Part # 85550978)**

1. **OEM Quality and Fitment** This is a genuine Chevrolet part, ensuring proper fitment, durability, and compatibility with the 2020-2026 Corvette C8 RWD (6.2L) model. OEM parts are designed to meet the manufacturer s specifications, reducing the risk of premature failure or improper installation.

2. **Reliability and Performance** The transmission mount plays a critical role in supporting the transmission and reducing vibrations, which is essential for maintaining smooth drivetrain operation. A high-quality mount helps prevent excessive wear on the transmission and surrounding components, contributing to long-term reliability.

3. **Prevents Drivetrain Issues** Worn or failing transmission mounts can lead to clunking noises, excessive movement, or even transmission misalignment. Replacing this part proactively can prevent more costly repairs down the line, such as transmission damage or suspension wear.

4. **Easy Installation** As a single part, this mount is relatively straightforward to replace compared to more complex drivetrain components. Most mechanics or even experienced DIYers can install it with basic tools, though access may require lifting the vehicle or removing the rear subframe.

5. **Warranty Coverage** If purchased from an authorized dealer or a reputable aftermarket supplier, this part may come with a warranty, providing peace of mind against defects. Chevrolet s OEM parts often include a limited warranty, depending on the retailer.

6. **Maintenance Alignment** Ensures the transmission remains properly aligned with the drivetrain, which is crucial for optimal power transfer and longevity of the 6.2L LT2 V8 engine and 7-speed dual-clutch transmission.

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1. **Cost** OEM parts, especially from Chevrolet, can be more expensive than aftermarket alternatives. While this part may not be extremely costly, the price could be a consideration for budget-conscious buyers or those looking for cheaper replacements.

2. **Potential Counterfeit Parts** If purchasing from an untrusted source, there is a risk of receiving a counterfeit or low-quality part. Always buy from authorized dealers, reputable online retailers, or trusted mechanics to avoid this issue.

3. **Labor Costs** While the part itself is relatively simple, installation may require lifting the vehicle or accessing the rear subframe, which could incur labor costs if done professionally. DIY installation is possible but may require additional tools or experience.

4. **Limited Availability** Depending on the region, this specific part may not be readily available at all local auto parts stores. Online retailers or specialty suppliers may be necessary, which could add shipping time or costs.

5. **Wear and Tear on Other Components** If the mount has been failing for some time, other parts of the drivetrain (e.g., bushings, mounts, or even the transmission itself) may have been subjected to extra stress. A thorough inspection of related components is advisable before installation.

6. **No Immediate Performance Gain** Unlike engine or suspension upgrades, replacing a transmission mount is primarily a maintenance or repair task. It won t improve acceleration, handling, or top speed but rather ensures the drivetrain operates correctly.

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The **2020-2026 Chevrolet Corvette C8 RWD (6.2L) rear left transmission mount (part # 85550978)** is a **practical and necessary replacement part** for maintaining the health of your Corvette s drivetrain. Its OEM quality ensures reliability, while its relatively simple installation makes it a manageable repair. The primary drawbacks cost, potential counterfeit risks, and labor requirements are outweighed by the benefits of preventing drivetrain issues and ensuring smooth operation.

If your Corvette is exhibiting symptoms of a failing transmission mount (e.g., clunking noises, excessive movement, or transmission misalignment), replacing this part is a **wise preventive measure**. It is not a high-risk or high-cost repair but rather a **routine maintenance task** that contributes to the longevity of your vehicle.

- **Buy from an authorized source** (Chevrolet dealership, reputable online retailers like RockAuto, or trusted auto parts stores) to ensure authenticity and warranty coverage.

- **Inspect related components** (e.g., other transmission mounts, bushings, and drivetrain linkages) during installation to address any underlying issues.

- **Consider professional installation** if you lack experience with drivetrain work, as improper installation could lead to further problems.

- **Monitor for symptoms** of a failing mount (e.g., rattling noises during acceleration or rough shifting) and address the issue promptly to avoid more severe drivetrain damage.

**Final Verdict:** This is a **solid, necessary replacement part** for maintaining your Corvette s drivetrain integrity. Proceed with purchase and installation, preferably from a trusted source, to ensure optimal performance and reliability.

Details:

Donor Vehicle Part Information:: RIPTIDE BLUE METALLIC, GJV ,2DR,3/24,STINGRAY,BLACK,NO KEY,6.2L,AUTO TRANS,RWD. Search for more parts from this donor vehicle. All catalytic converters were tested and certified to meet the performance requirements at time of sale. Condition: 21k.

Model: CHEVY CORVETTE. Transmission Mount. Search for more parts for CHEVY CORVETTE. Vehicle Stock #: 117613.

Airbag Notification. Part Stock #. Seat Cushions do NOT come with airbags. RH means right or passenger side.

LH means left or driver side.

part #: 85550978 prices

• $79.01-$145.91

specifications engimou:

• for models: C8, Rwd, Corvette
• for makes: Chevy, Chevrolet
• for years: 2020-2026
• brand: Chevrolet
• mpn: 85550978
• part type: Transmission Mount
• oe/oem part number: 2021 2022 2023 2024, 2025
• id: 1bd991ef-865b-44ce-b9ef-c404f9ec40cc

offer engimou:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: April 28, 2026
• sold: 0
• best offers: True

general engimou:

• Car Truck Parts Accessories > Engines Engine Parts > Engine Mounts
• condition: Used

seller engimou:

• rating: 99.8%
• city: Venice, Florida
• # reviews: 28454

returns engimou:

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

payments engimou:

• other
• wallet: Paypal
• credit card: Mastercard

shipping engimou:

• class: Standard
• type: Fixed
• transit: 3-7 Days
• cost: $0.00
• service: Standard

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