Chevrolet Blazer Transmission Mount Guide: 1995-2006
Stop the clunking and shaking in your 1995-2006 Blazer with the right new transmission mount.
- Symptoms include clunking noises, excessive vibrations, and grinding sounds on acceleration.
- It is strongly recommended to replace the engine mounts at the same time as the transmission mount.
- Verify if your Blazer is 2WD or 4WD before ordering, as the parts are likely different.
- Budget brands like Anchor, DEA, and Westar are functional but may have quality and fitment issues compared to Pioneer.
Is Your Blazer's Transmission Mount Failing?
A worn-out transmission mount on a 1995-2006 Blazer can cause a range of symptoms. Because the rubber cushion wears down over time, the transmission can move more than it should. This can lead to clunking, vibrations, and even other parts getting damaged.
Key Symptoms of a Bad Mount:
- Clunking or Banging Noises: You might hear a loud clunk or bang when you accelerate hard, brake suddenly, or shift between Drive and Reverse. This is the sound of the transmission moving and hitting other parts.
- Excessive Vibrations: A bad mount can't absorb vibrations properly. You may feel a new or stronger vibration through the floor or seats, especially when idling or accelerating.
- Grinding or Rubbing Sounds: Some Blazer owners report a grinding or rubbing sound when accelerating hard from a stop, like when going up a steep hill. This can be the sound of the transmission or driveshaft moving and making contact with the vehicle's body or frame.
- Visible Movement: If you can see the transmission move excessively when the engine is revved while in gear (with the brakes on), the mount is likely worn out.
Check Your Engine Mounts, Too
The transmission mount works together with the engine mounts. If the transmission mount has failed, the engine mounts are likely worn out as well. Replacing only the transmission mount can put extra stress on the new part and cause strong vibrations. It is highly recommended to inspect and replace all mounts at the same time for a smooth ride.
Choosing the Right Aftermarket Transmission Mount
For a vehicle like the 1995-2006 Blazer, new OEM (Original Equipment Manufacturer) parts can be hard to find and expensive. The aftermarket offers several options that fit a range of budgets. However, quality can vary significantly between brands.
Aftermarket Brand Tiers
| Tier | Brands | Description |
|---|---|---|
| Better | Pioneer | Often considered a higher-quality aftermarket option. Forum users have noted that Pioneer mounts can be hard to distinguish from the original factory parts, suggesting good fit and quality. |
| Economy | Anchor, Westar, DEA | These brands are widely available and very affordable. They are a functional choice for a budget repair, but user reviews are mixed. Some have reported issues with fitment and long-term durability, with some mechanics referring to them as 'junk'. Anchor is sometimes seen as slightly better than Westar or DEA. |
Common Ordering Mistake: 2WD vs. 4WD
The transmission mount for a two-wheel drive (2WD) Blazer may be different from the one for a four-wheel drive (4WD) model. The transmissions and frame crossmembers are not the same between the two drivetrains. Always confirm that the part you are ordering is specifically for your vehicle's 2WD or 4WD configuration to avoid installation problems.
Known Issues, Recalls, or TSBs
There are no specific recalls or Technical Service Bulletins (TSBs) from Chevrolet or the NHTSA for the automatic transmission mount on the 1995-2006 Blazer. Failure is typically due to age, mileage, and wear and tear.
Frequently Asked Questions (FAQ)
Is it hard to replace a Blazer transmission mount?
No, for a DIY mechanic with the right tools, it's a fairly simple job. It involves supporting the transmission with a jack, removing the bolts holding the mount to the crossmember and transmission, and swapping the old part for the new one. The most common complaint is that the bolts can be in tight spaces.
Do I need to replace my engine mounts at the same time?
It is highly recommended. The engine and transmission mounts work as a system. A new transmission mount paired with old, worn engine mounts can lead to excessive vibrations and premature failure of the new part.
What happens if I don't replace a bad transmission mount?
Ignoring a bad mount can lead to more serious problems. The constant movement can damage other components like the driveshaft, exhaust pipes, and shifting linkages. In severe cases, it can make the vehicle unsafe to drive.
Why is my Blazer vibrating *more* after replacing the mount?
This usually happens when only the transmission mount is replaced while the engine mounts are still old and worn. The new, stiff mount doesn't have the same amount of 'play' as the old one, which makes the vibrations from the worn engine mounts more noticeable. It can also be a sign of a very low-quality, hard rubber aftermarket mount.
Technical Specifications
One key difference is between mounts for 2WD and 4WD models. The physical mount and crossmember may differ. Always verify fitment for your specific drivetrain.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Chevrolet Blazer:
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- Is Your Blazer's Transmission Mount Failing?
- Key Symptoms of a Bad Mount:
- Check Your Engine Mounts, Too
- Choosing the Right Aftermarket Transmission Mount
- Aftermarket Brand Tiers
- Common Ordering Mistake: 2WD vs. 4WD
- Known Issues, Recalls, or TSBs
- Frequently Asked Questions (FAQ)
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