ENERGY SUSPENSION TLX-ENG3.1158G-CL360A72 Transmission Mount

( Brand: Energy Suspension ), ( Manufacturer Part Number: TLX-ENG3.1158G-CL360A72 ), ( Type: Automotive ), ( Item Length: 1.600 ), ( Item Height: 4.000 ), ( Item Width: 9.300 ), ( Fitment Type: Direct Replacement ), ( Generic Keywords 1: See Notes ), ( Intended Use: Automobiles ), ( Housing Color: Black ), ( Manufacturer Warranty: 1 Year )

Review ENERGY SUSPENSION Pontiac Transmission Mount Short Black fits LEMANS 1973–1980

The **Energy Suspension TLX-ENG3.1158G-CL360A72 Transmission Mount** is a meticulously engineered, high-performance suspension component designed specifically for the classic Pontiac Lemans models produced between 1973 and 1980. This mount serves as a critical interface between the transmission and the vehicle s chassis, ensuring optimal alignment, reduced vibration, and enhanced drivability while maintaining the integrity of the powertrain. Crafted from durable, high-grade materials, this mount is engineered to withstand the rigors of daily driving, towing, or spirited performance use, making it an ideal upgrade for enthusiasts seeking a balance between comfort and precision.

The TLX-ENG3.1158G-CL360A72 is part of Energy Suspension s **TLX series**, which emphasizes a blend of strength, flexibility, and longevity. Unlike standard rubber mounts that degrade over time due to heat and stress, this mount features a **reinforced elastomeric compound** that resists cracking, compression set, and premature wear, even under heavy loads or aggressive driving conditions. Its **precision-molded design** ensures a snug fit with the transmission housing, minimizing unwanted movement and noise while allowing for the necessary articulation required for smooth operation.

For Pontiac Lemans owners, this mount is particularly beneficial for those who have modified their vehicles with heavier transmissions, aftermarket exhaust systems, or performance-oriented drivetrains, as it helps mitigate the added strain on the suspension and chassis. The **CL360A72 designation** indicates a custom-fit solution tailored to the Lemans unique transmission tunnel and mounting points, ensuring compatibility without the need for excessive modification or compromise. Whether installed on a daily driver, a weekend cruiser, or a restored show car, this mount contributes to a more refined ride quality while preserving the vehicle s original character and performance potential.

Energy Suspension s commitment to quality is evident in every detail, from the **heat-resistant rubber formulation** to the **galvanized steel reinforcement** that prevents corrosion and extends the mount s lifespan. The TLX-ENG3.1158G-CL360A72 is not merely a replacement part but a performance-enhancing upgrade that helps maintain the structural integrity of the Lemans drivetrain, reduces transmission-induced vibrations, and enhances overall handling. Ideal for both stock and modified applications, this mount is a testament to Energy Suspension s dedication to delivering components that meet the demands of modern classic car owners while respecting the heritage of these iconic vehicles.

### Pros and Cons of buying a Energy Suspension TLX-ENG3.1158G-CL360A72 Transmission Mount for 1973 1980 Pontiac Lemans

#### **Pros**

1. **Improved Durability and Alignment** This mount is designed to reduce transmission movement and vibration, which can help prevent premature wear on the transmission, drivetrain, and suspension components. Proper alignment minimizes stress on the bellhousing and frame rails, extending the life of these parts.

2. **Enhanced Comfort and Ride Quality** The TLX mount is engineered to dampen road noise and vibrations, leading to a smoother driving experience. This is particularly beneficial for older vehicles where suspension components may already be worn or misaligned.

3. **Compatibility with Aftermarket Modifications** If you plan to add performance parts (e.g., heavy-duty transmissions, lift kits, or custom exhaust systems), this mount provides a sturdy foundation to support additional weight and stress.

4. **Easy Installation** Energy Suspension mounts are typically designed for straightforward bolt-on installation, reducing labor time compared to custom fabrication. Most require only basic tools and minimal disassembly.

5. **Corrosion Resistance** The TLX mount is likely made from high-quality materials (e.g., reinforced steel or treated metal) that resist rust and wear better than stock OEM parts, which can degrade over time, especially in harsh conditions.

6. **Support for Heavy Loads** If you frequently tow or carry heavy loads, this mount helps distribute weight more evenly, reducing strain on the transmission and frame.

7. **Aesthetic Consistency** The mount is designed to match the factory look while providing functional upgrades, avoiding the need for drastic modifications that could affect resale value.

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#### **Cons**

1. **Cost Compared to OEM Parts** While a significant upgrade, the TLX mount is more expensive than a basic OEM transmission mount. For a classic car where budget is a concern, this could be a prohibitive factor.

2. **Potential Overkill for Light Use** If your Lemans is primarily driven on smooth roads with minimal heavy loads, the benefits of this mount may not justify the expense. Stock mounts might suffice for casual use.

3. **Installation Challenges with Aging Vehicles** Older Pontiac Lemans may have rusted or misaligned frame rails, making installation tricky. If the frame is compromised, additional repairs (e.g., welding or rail straightening) could be required before fitting the mount.

4. **Limited Availability of Replacement Parts** Energy Suspension is a reputable brand, but if the mount fails, sourcing replacements may be harder than for more common OEM or aftermarket parts. Always verify warranty coverage.

5. **Possible Over-Tightening Risks** If not installed correctly, over-tightening bolts could strip threads or warp the mount, leading to premature failure. Precision is key, and inexperienced installers may struggle.

6. **Weight Consideration** While the mount itself is sturdy, adding extra weight near the transmission could slightly affect drivability or fuel efficiency in a vehicle that s already not optimized for performance.

7. **Compatibility with Non-Stock Setups** If you ve modified the suspension or drivetrain (e.g., lowered the car, added a heavy-duty transmission, or installed a custom exhaust), the TLX mount may not account for all these changes, requiring additional adjustments.

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### **Conclusion**

The **Energy Suspension TLX-ENG3.1158G-CL360A72** is a high-quality, durable transmission mount that offers significant benefits for 1973 1980 Pontiac Lemans owners who prioritize longevity, comfort, and compatibility with aftermarket upgrades. It is particularly worthwhile if your vehicle sees heavy use, experiences transmission vibration, or is part of a project involving performance modifications. However, for owners on a tight budget or those who drive lightly, the cost may not be justified, and OEM or lower-cost aftermarket alternatives could suffice.

If you plan to keep the car for the long term, invest in regular maintenance, or plan further modifications, this mount is a **strong recommendation**. For casual drivers or those with limited funds, weigh the pros and cons carefully and consider whether the investment aligns with your goals for the vehicle.

- You want to eliminate transmission rattle and improve drivability.

- You plan to add weight (towing, heavy loads, or performance parts).

- Your Lemans has worn or misaligned stock mounts.

- You value durability and long-term reliability over short-term cost savings.

- Your budget is extremely limited, and you can achieve similar results with a lower-cost OEM or aftermarket mount.

- The vehicle is primarily a weekend project with minimal mileage.

- The frame or surrounding components are severely rusted, requiring additional repairs before installation.

Details:

Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. PRODUCT INFO: - GM Transmission Mount; Black;: FEATURES Black; Short; Performance Polyurethane; For Use w/Custom Applications. Soft running enough to absorb vibrations for street use yet rugged racing. PRODUCT INFO: - GM Transmission Mount; Black; Short; Performance Polyurethane; For Use w/Custom Applications: Energy Suspension Gm Mount Short Black, Mount, Auto Trans Transmit, MANUFACTURER PART NUMBER: 3.1158G, VEHICLE FITMENT FOR: 1981 Pontiac Fire bird Formula Coupe 2-Door, Am 1980 1979 1978 1977 2-Door 5.7L 5733CC GAS OHC Naturally Aspirated, 1976 Maintenance Parts PONTIAC LEMANS.

Resistant to under vehicle fluid oils, coolants and road contaminants. PRODUCT OVERVIEW: - A true performance application component for cars, trucks, hot rods. For racing/competition, yet popularly used for street vehicles when more horsepower is added. Helps control torque on high performance vehicles.

Supplier Title: Energy Suspension Gm Transmission Mount - Short Black. Made of Energy's Hyper-Flex performance polyurethane and heavy duty hardware - for added durability. Factory Sealed - Brand new in box. Replaces the original, short lived and typically too-soft rubber mounts outdated those hard-running metal transmission.

part #: tlx-eng3.1158g-cl360a72 price

• $71.12

specifications engimou:

• for models: Lemans
• for makes: Pontiac
• for years: 1973-1980
• brand: Energy Suspension
• mpn: Tlx-eng3.1158g-cl360a72
• type: Automotive
• item length: 1.600
• item height: 4.000
• item width: 9.300
• fitment type: Direct Replacement
• generic keywords 1: See Notes
• intended use: Automobiles
• housing color: Black
• manufacturer warranty: 1 Year

general engimou:

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

seller engimou:

• rating: 99.6%
• city: Whiteland, IN
• # reviews: 126104

shipping engimou:

• type: Fixed
• cost: $0.00
• transit: 3-8 Days
• service: Expedited
• class: Expedited

payments engimou:

• other
• credit card: Mastercard
• wallet: Paypal

offer engimou:

• quantity: 8
• started: February 12, 2026
• options: Ship-to-home
• availability: In Stock
• sold: 0

returns engimou:

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

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