If you have noticed a clunking sound when shifting gears or a persistent vibration that seems to come from under the floor, your transmission mount may be failing. A worn mount allows the drivetrain to move excessively, which can lead to misalignment, harsh shifts, and even damage to other components. Choosing the right replacement is not just about fixing the noise—it is about restoring the performance and comfort of your daily drive or track machine.
This guide reviews ten transmission mounts that cover a wide range of vehicles, from classic GM rear-wheel-drive cars to modern SUVs and sedans. Whether you need a rugged polyurethane unit for racing or a hydraulic mount for smooth highway cruising, these picks are based on real features and applications. Read on to find the mount that matches your vehicle and driving style.
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3.1108G General Transmission Mount Performance Polyurethane Mounts Bracket …
Best forGM performance builds
- Zinc-plated steel bracket
- Resists oils and chemicals
ConsiderFirmer ride for daily
3.1108G Transmission Mount Compatible with GM TH350 TH400 700R4
Best forGM manual or auto
- Works with manual/auto
- Urethane resists rot
ConsiderMay transmit more noise
Heavy Duty Universal Transmission Mount TH350 TH400 700R4 4L60E 4L80E
Best forUniversal GM swaps
- Fits multiple GM transmissions
- Heavy-duty construction
ConsiderMay need modifications
Energy Suspension 3.1108R Transmission Mount for GM
Best forEnthusiasts seeking firmness
- Hyper-Flex polyurethane
- Resists contaminants
ConsiderFirmer ride comfort
Yllhaoyuan Engine Motor Transmission Mount Kit for Traverse/Acadia 3.6L
Best forGM 3.6L SUV owners
- Complete 4-mount set
- OE cross-reference fit
ConsiderLimited to specific models
Engine Motor and Transmission Mount Kit Compatible with 2014-2019 Corolla
Best forCorolla 1.8L owners
- OE reference numbers
- High-quality materials
ConsiderOnly for 1.8L auto
3.1108G Transmission Mount Bracket Kit, for GM RWD Cars and 2WD Trucks, for…
Best forStreet and race balance
- Includes preload plate
- Resists fluids and coolants
ConsiderMay need torque specs
Engine Motor Mount & Transmission Mount Kit for 2017-2024 Pacifica 3.6L
Best forPacifica and Voyager
- Full 4-mount set
- OE reference numbers
ConsiderSpecific to 3.6L auto
Engine Motor & Transmission Mount for Explorer 2011-2015 3.5L NA, W/o Turbo
Best forExplorer 3.5L NA
- Includes hydraulic mount
- Direct OE replacement
ConsiderNot for turbo models
Yllshengyu Engine Motor Transmission Mount Kit for Cherokee 2014-2021 2.4L
Best forCherokee 2.4L owners
- Hydraulic mounts included
- Multiple OEM coverage
ConsiderLimited to 2.4L engine
Hihitomorrow 3.1108G Polyurethane Mount – Performance Upgrade
Brand: Hihitomorrow
A durable polyurethane mount that boosts performance for classic GM drivetrains.
The Hihitomorrow 3.1108G is built for GM vehicles with TH350, TH400, or 700R4 transmissions, covering a wide range of models from 1963 to 2001. Its zinc-plated steel bracket adds durability where it matters, while the high-performance polyurethane core is designed to handle the torque and vibration of street and racing use. You get a mount that resists compression and maintains its shape under heavy loads.
Installation is straightforward thanks to the included studs, nuts, and washers. The polyurethane material is also resistant to oils and under-car chemicals, so it will not deteriorate like rubber. If you want a firmer feel and better drivetrain stability, this mount delivers without sacrificing too much comfort for daily driving.
- Zinc-plated steel bracket
- Resists oils and chemicals
- Includes mounting hardware
- Firmer ride for daily
- Limited to GM models
JY PERFORMANCE 3.1108G – Reliable Urethane Replacement
Brand: JY PERFORMANCE
A solid urethane mount that offers easy installation and dependable performance for GM vehicles.
The JY PERFORMANCE transmission mount is a direct fit for GM cars and trucks using TH350, TH400, or 700R4 transmissions, and it works with both manual and automatic setups. The high-quality urethane component is engineered to resist deterioration from oil exposure and road chemicals, making it a long-lasting replacement for the original rubber mount. You will notice improved shift firmness and reduced drivetrain slop.
Installation is simplified because the kit includes all necessary studs, nuts, and washers. This mount is a practical choice if you need a dependable upgrade without the complexity of custom fabrication. It is designed to hold up under normal street use while providing a bit more rigidity than stock, which helps keep your transmission aligned.
- Works with manual/auto
- Urethane resists rot
- Hardware included
- May transmit more noise
- Not for heavy racing
WIT Heavy Duty Universal Mount – Versatile Fit
Brand: WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC
A versatile heavy-duty mount that suits various GM transmission swaps with minor adjustments.
This heavy-duty universal transmission mount from WIT is designed to fit a broad range of GM transmissions, including TH350, TH400, 700R4, 4L60E, and 4L80E. Its universal nature means you can use it in various applications, from classic muscle cars to modern trucks, as long as the mounting points align. The construction focuses on strength and longevity, making it a suitable choice for high-torque engines.
Because it is a universal part, you may need to verify the bolt pattern and height before installation. However, once fitted, it provides a stable base that reduces movement and helps maintain proper driveline angles. If you are doing a custom swap or need a mount that can handle different transmission models, this option offers flexibility.
- Fits multiple GM transmissions
- Heavy-duty construction
- Ideal for custom builds
- May need modifications
- No hardware included
Energy Suspension 3.1108R – Trusted Polyurethane Brand
Brand: Energy Suspension
A high-performance polyurethane mount from a trusted brand that delivers lasting durability.
Energy Suspension is a well-known name in performance polyurethane components, and the 3.1108R mount lives up to that reputation. It is designed for GM vehicles with TH350, TH400, or 700R4 transmissions, offering a direct replacement that resists the contaminants that often destroy rubber mounts. The Hyper-Flex polyurethane is engineered to not compress under load, so you get consistent performance over time.
This mount is a professional-grade product that appeals to enthusiasts who want a firmer, more responsive drivetrain. It helps control torque and reduces wheel hop, which is especially beneficial for high-performance street or strip use. While it may transmit more vibration than a stock rubber mount, the trade-off is improved stability and durability.
- Hyper-Flex polyurethane
- Resists contaminants
- Professional-grade quality
- Firmer ride comfort
- Premium price point
Yllhaoyuan Mount Kit – Complete Set for GM SUVs
Brand: Yllhaoyuan
A comprehensive mount kit that restores smoothness and reliability to GM 3.6L SUVs.
The Yllhaoyuan engine and transmission mount kit is engineered for 2009-2017 Buick Enclave, Chevrolet Traverse, GMC Acadia, and Saturn Outlook with the 3.6L engine. This complete set includes four mounts: front, rear, transmission, and torque strut, covering the entire mounting system. It is a direct OE replacement with cross-reference numbers like 25840452 and 25840450, ensuring a precise fit.
The mounts are constructed with high-grade, oil-resistant rubber that meets original equipment standards. This design focuses on vibration reduction, which is crucial for a smooth ride in these large SUVs. If you are experiencing clunks or vibrations, this kit addresses all the common wear points in one package, saving you time and effort.
- Complete 4-mount set
- OE cross-reference fit
- Oil-resistant rubber
- Limited to specific models
- Installation may be complex
loongrie Mount Kit – Precision Fit for Corolla
Brand: loongrie
A precise mount kit that restores original performance and comfort to your Corolla.
The loongrie engine and transmission mount kit is specifically designed for 2014-2019 Toyota Corolla with the 1.8L engine and automatic transmission. It includes all necessary mounts, with OE reference numbers like A42026 and 123720T330, ensuring a direct replacement. The manufacturer emphasizes high-quality raw materials and rigorous quality control, so you can expect a reliable part.
This kit is a practical solution if you are dealing with excessive engine movement or vibrations in your Corolla. The mounts are built to match the original specifications, providing a comfortable and stable ride. Before purchasing, use the fitment tool to confirm compatibility with your exact model year and trim.
- OE reference numbers
- High-quality materials
- Direct fit for Corolla
- Only for 1.8L auto
- Not for hybrid models
usvehj 3.1108G Mount Kit – Street and Race Ready
Brand: usvehj
A well-rounded mount kit that suits both daily driving and spirited performance.
The usvehj transmission mount bracket kit is a direct replacement for the 3.1108G part number, compatible with GM rear-wheel-drive cars and 2WD trucks using TH350, TH400, or 700R4 transmissions. It is designed to absorb vibrations for street use while remaining rugged enough for racing applications. The kit includes the mount, an upper preload plate, and screws, providing everything you need for installation.
The construction uses high-quality materials that resist under-vehicle fluids, coolants, and road contaminants, ensuring a long service life. This mount helps control torque on high-performance vehicles and maintains proper driveline alignment. If you want a balance between comfort and performance, this kit offers a versatile solution.
- Includes preload plate
- Resists fluids and coolants
- Balanced for street/race
- May need torque specs
- Limited to GM RWD
KJYDXYS Mount Kit – OE Quality for Pacifica
Brand: KJYDXYS
A dependable mount kit that brings back smooth and quiet operation to your Pacifica.
The KJYDXYS engine and transmission mount kit is designed for 2017-2024 Chrysler Pacifica and 2020-2024 Voyager with the 3.6L engine and automatic transmission. It includes one right engine mount, one rear engine mount, one rear torque strut mount, and one left transmission mount, covering the full system. The parts are 100% brand-new and go through professional quality control to meet OE standards.
With reference numbers like A20027 and 68224744AB, this kit ensures a precise fit. The high-quality raw materials deliver durability and help reduce vibrations, which is essential for a smooth minivan ride. If you are experiencing clunks or excessive movement, this kit is a reliable replacement that restores stability.
- Full 4-mount set
- OE reference numbers
- Quality control tested
- Specific to 3.6L auto
- Installation may be involved
Mardarth Mount Set – For Explorer 3.5L NA
Brand: Mardarth
A reliable mount set that reduces vibration and restores stability for non-turbo Explorers.
The Mardarth engine and transmission mount set is tailored for the 2011-2015 Ford Explorer with the 3.5L non-turbo engine and automatic transmission. It includes three mounts: the rear engine torque strut mount, the right engine motor mount, and the left transmission mount, which is hydraulic. The parts are direct replacements with reference numbers 3255, 3392, and 3439, ensuring a proper fit.
This set has undergone extensive quality and safety testing, using high-quality raw materials. The hydraulic transmission mount helps absorb vibrations, providing a smoother ride. It is important to note that this set is not compatible with turbocharged engines, so verify your vehicle’s specifications before ordering.
- Includes hydraulic mount
- Direct OE replacement
- Quality tested
- Not for turbo models
- Only three mounts
Yllshengyu Mount Kit – Hydraulic Control for Cherokee
Brand: Yllshengyu
A complete hydraulic mount kit that delivers smooth and stable performance for your Cherokee.
The Yllshengyu engine and transmission mount kit is designed for the 2014-2021 Jeep Cherokee with the 2.4L engine. It includes both critical hydraulic engine and transmission mounts, plus a rear torque strut mount, providing comprehensive vibration control. The kit covers multiple OEM part numbers like 3378, 3380, and 4877788AF, ensuring broad compatibility.
Constructed from high-strength materials, these mounts are built to last and maintain proper alignment. The hydraulic design is particularly effective at damping vibrations, which is crucial for a comfortable ride in the Cherokee. Before purchasing, use the fitment tool to confirm compatibility with your specific model year and trim.
- Hydraulic mounts included
- Multiple OEM coverage
- High-strength build
- Limited to 2.4L engine
- May be pricey
Buyer’s Guide: What to Consider
Choosing the right transmission mount involves more than just matching the part number. You need to consider material, fitment, and your driving needs. This guide breaks down the key factors to help you make an informed decision.
- Vehicle Compatibility: Always verify that the mount matches your vehicle's make, model, year, and engine. Use fitment tools or cross-reference OEM part numbers to avoid buying the wrong part. A universal mount may require modifications, so check dimensions and bolt patterns.
- Material Type: Rubber mounts offer comfort and noise isolation but wear out faster. Polyurethane mounts are firmer, more durable, and resist oil and chemicals, making them ideal for performance. Hydraulic mounts provide the best vibration damping for daily drivers but are more complex.
- Performance vs. Comfort: Consider your driving style. If you race or tow, a stiffer polyurethane mount reduces drivetrain movement. For daily commuting, a hydraulic or rubber mount absorbs road noise and vibrations. Balance your need for firmness with ride quality.
- Kit Contents: Some mounts come as a single unit, while others are part of a full kit that includes engine and transmission mounts. A complete kit ensures all worn mounts are replaced, which is often more efficient and cost-effective than replacing one at a time.
- Installation Complexity: Check if hardware is included and if the mount is a direct fit. Some mounts require lifting the transmission or removing other components. If you are not comfortable with DIY, consider professional installation costs when budgeting.
Conclusion
Transmission mounts are critical for drivetrain stability and ride comfort. Whether you drive a classic GM muscle car, a modern SUV, or a compact sedan, there is a mount that fits your needs. Polyurethane options like the Hihitomorrow and Energy Suspension are great for performance, while hydraulic kits like the Yllshengyu offer smooth daily driving.
For a quick recommendation, if you own a GM RWD vehicle, the Hihitomorrow 3.1108G is a solid choice. For modern SUVs, the Yllhaoyuan kit for GM models or the KJYDXYS for Pacifica covers all mounts. Always confirm compatibility before purchase, and replace all worn mounts to avoid future issues.
Erica Steven is the founder and lead writer of WorstBrands, a site dedicated to providing honest and trustworthy reviews about outdoor gear and fashion products.
With a passion for exploring the great outdoors and staying up to date on the latest fashion trends, Erica uses her expertise to provide valuable insights into the products that matter most to her readers.
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