A Deep Dive into the 1987-1991 Buick Skylark Automatic Transmission Mount
If you're feeling a clunk or vibration in your Skylark, your transmission mount might be the culprit.
- The most common signs of failure are clunking noises when shifting and increased vibration while driving.
- For this vehicle, aftermarket parts are the primary option. Pioneer is generally considered a better quality choice than economy brands like Anchor or DEA.
- This is a DIY-friendly repair for those with a floor jack, jack stands, and basic hand tools.
- There are no known recalls or TSBs from NHTSA specifically for the transmission mount on this vehicle.
Symptoms of a Failing Transmission Mount in a Buick Skylark
When the transmission mount on your Skylark wears out, the signs are usually easy to notice. Because the part's job is to hold the transmission steady and absorb vibration, the most common symptoms are related to noise and movement.
- Clunking or Banging Noises: This is the most common sign. You might hear a distinct "clunk" or "bang" when you shift from Park into Drive or Reverse. The noise can also happen during hard acceleration or when you hit a bump. This sound is the transmission itself moving and hitting against other parts 🎬 Watch: 5 signs of a bad mount and how to diagnose them. because the mount is no longer holding it securely.
- Excessive Vibrations: A new mount absorbs drivetrain vibrations, but a failed one lets them pass into the car's cabin. You may feel a new or stronger vibration through the floor, steering wheel, or seats. This shaking might be constant or only noticeable when accelerating.
- Visible Engine Movement: If the mount is completely broken, you might see the engine and transmission assembly move excessively. A helper can put the car in gear with the brakes held firmly while you safely watch the engine bay from the side. Any large lurching or rocking motion is a clear sign of a bad mount. 🎬 See these methods to help diagnose engine and transmission movement.
Don't Ignore the Signs
While you can drive with a failing mount for a short time, it's not recommended. A completely failed mount can put extra stress on other parts like engine mounts, CV joints, and axle shafts, potentially leading to more expensive repairs down the road.
Choosing the Right Aftermarket Mount for Your Skylark
For a vehicle like the 1987-1991 Skylark, original equipment (OEM) mounts from GM are likely discontinued and very difficult to find. The market primarily consists of aftermarket brands that offer a cost-effective solution. The available brands like Anchor, DEA, and Pioneer fall into different tiers of quality and price.
Brand Quality Tiers
Based on forum discussions and reviews, aftermarket mounts for older vehicles generally fall into two categories: economy and standard.
- Economy Brands (Anchor, DEA): These brands are widely available and are the most affordable options. However, their quality can be inconsistent. Many mechanics and DIYers have reported issues with these brands, such as premature failure, poor fitment, and using harder rubber that causes more vibration than the original part. While some users have had no problems, buying from this tier can be a gamble. They are best suited for a budget-focused repair where longevity is not the primary concern.
- Standard Brands (Pioneer): Pioneer is often seen as a step up from the economy brands. Reviews suggest their parts often have a better appearance, looking closer to the original factory mount. While they may not have the same durability as an original OEM part, they are generally considered a reliable choice for a daily driver and a good balance between price and quality.
Pro Tip: For an older car like the Skylark, a standard aftermarket brand like Pioneer often provides the best value. It offers a noticeable improvement over a completely failed mount at a reasonable price without the quality concerns of some economy brands.
Cost to Replace a 1987-1991 Skylark Transmission Mount
| Part Type | Estimated Part Cost | Estimated Labor Cost |
|---|---|---|
| New Aftermarket | $19.72 - $57.90 | $170 - $250 |
| New OEM | Likely Discontinued |
Frequently Asked Questions (FAQ)
Is it safe to drive with a bad transmission mount?
It is not recommended for long periods. While the transmission is unlikely to fall out, the excessive movement can damage other components like axles, driveshafts, and exhaust pipes, leading to more costly repairs. It's best to get it replaced as soon as you can.
Can I replace the transmission mount myself?
Yes, this is a feasible DIY project for someone with basic mechanic's tools. The process involves safely lifting the vehicle, supporting the transmission with a floor jack and a block of wood, unbolting the old mount, and installing the new one. It typically takes about one to two hours.
🎬 Watch this step-by-step guide on how to install a transmission mount.Are there any recalls for the 1987-1991 Skylark transmission mount?
No, searches of the National Highway Traffic Safety Administration (NHTSA) database and other public records show no specific recalls or technical service bulletins (TSBs) for the automatic transmission mount on the 1987-1991 Buick Skylark.
Will a new aftermarket mount feel different than the original?
It might. A new mount will be a huge improvement over a broken one, eliminating clunks and reducing vibrations. However, some economy aftermarket mounts use a harder rubber compound than the original, which can sometimes transmit slightly more vibration into the cabin at idle. Standard-quality brands are less likely to have this issue.
Helpful Videos
Technical Specifications
The automatic transmission mount for the 1987-1991 Buick Skylark is a non-hydraulic design, consisting of a metal frame and a solid rubber insulator block. It secures the transmission to the vehicle's subframe.
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.
- Buick Skylark: