Automatic Transmission Mount Guide for the 1985-1994 Oldsmobile Cutlass Cruiser
Feeling a clunk or vibration when you shift gears? Your transmission mount might be the problem.
- A loud 'clunk' when shifting and heavy vibration at idle are the most common signs of a failed transmission mount.
- Aftermarket mounts are the most practical option; brands like Anchor, DEA, and Westar are budget-friendly, while Pioneer may offer a balance of quality and price.
- Replacement is a feasible DIY job with a floor jack and basic tools, which can save significant labor costs.
- Check for oil leaks above the mount, as leaking fluid will destroy the new mount's rubber over time.
Signs of a Failing Transmission Mount
When the transmission mount on your Cutlass Cruiser wears out, the symptoms are usually obvious. The rubber can crack, get soaked with oil, or separate from the metal plates. Because the mount can no longer hold the transmission steady or absorb vibrations, you will likely experience one or more of the following issues:
- Excessive Vibration: This is the most common sign. You may feel a new, strong vibration in the steering wheel, seats, or floor, especially when the car is idling in 'Drive' at a stoplight.
- Clunking or Banging Noises: A loud 'clunk' or 'thud' when you shift between Park, Reverse, and Drive is a classic symptom of a failed mount. You might also hear these noises when you accelerate or decelerate suddenly as the loose transmission shifts and hits other components.
- Visible Drivetrain Movement: If you can safely have a helper hold the brakes and shift between gears (while you stand to the side of the vehicle, never in front), you may see the entire engine and transmission assembly rock or lurch more than an inch or two.
Oil Kills Mounts
Engine oil and transmission fluid are enemies of the rubber in your mounts. A small oil leak from a valve cover or oil pan gasket can drip onto the transmission mount, causing the rubber to swell, soften, and fail prematurely. If you are replacing a mount that looks oil-soaked, be sure to fix the leak first.
Choosing the Right Aftermarket Mount
For a vehicle like the 1985-1994 Cutlass Cruiser, original OEM parts from GM are likely discontinued or very hard to find. Aftermarket mounts are the most practical and affordable choice. However, quality can vary between brands. Here’s a general breakdown of the available aftermarket brand tiers based on general mechanic and owner feedback:
- Economy Brands (Anchor, DEA, Westar): These brands are widely available and very inexpensive. They are a budget-friendly option to get your car back on the road. However, forum discussions show mixed experiences. Some users report these mounts can be made with thinner metal or harder rubber, which might lead to a shorter lifespan or more cabin vibration compared to the original part.
- Standard Aftermarket (Pioneer): Brands like Pioneer are often seen as a step up from the basic economy options, offering a good balance of price and quality. They aim to produce parts that fit and function like the original. While not a premium performance brand, they are a solid choice for a daily driver.
Pro Tip: Replace Mounts in Sets
Your Cutlass Cruiser uses several mounts to hold the powertrain (engine and transmission) in place. There is one primary transmission mount, two engine mounts, and often upper torque struts (sometimes called 'dog bones'). When one mount fails, the others have been subjected to extra stress and have the same amount of age and wear. For a complete and lasting repair, it's best practice to inspect all mounts and replace them as a set if you find multiple failures.
Cost of a New Aftermarket Transmission Mount
| Item | Cost Range |
|---|---|
| New Aftermarket Transmission Mount | $16.83 - $27.04 |
| Estimated Shop Labor | $90 - $150 |
Frequently Asked Questions (FAQ)
Can I replace the transmission mount myself?
Yes, for many DIY mechanics, this is a manageable job. It requires a floor jack, jack stands for safety, a block of wood to protect the transmission pan, and a basic socket set. The basic process involves supporting the transmission with the jack, unbolting the old mount from the crossmember and transmission, and installing the new one. Always use jack stands and never work under a vehicle supported only by a jack.
How many transmission mounts does my Cutlass Cruiser have?
Your vehicle has one primary automatic transmission mount. This mount works together with the engine mounts to support the entire drivetrain.
What happens if I don't replace a bad mount?
Ignoring a bad transmission mount can lead to bigger problems. The excessive movement can put stress on and damage other parts, such as CV axles, exhaust pipes, radiator hoses, and wiring. The constant clunking and vibration can also make driving unpleasant and unsafe.
Are there any recalls for the transmission mount on my Cutlass Cruiser?
No. Searches of the National Highway Traffic Safety Administration (NHTSA) database did not show any recalls or technical service bulletins (TSBs) specifically for the automatic transmission mount on the 1985-1994 Oldsmobile Cutlass Cruiser.
Technical Specifications
This vehicle uses a single automatic transmission mount that secures the transmission to the vehicle's subframe. It is constructed of steel and a solid rubber block designed to absorb drivetrain vibrations. It works in conjunction with two engine mounts and at least one upper torque strut mount.
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.
- Oldsmobile Cutlass Cruiser: