A Guide to Engine Mounts for the 1987-1991 GMC V2500 Suburban
Excessive vibration or clunking noises could mean it's time to replace your truck's engine mounts.
- Symptoms of failure include heavy vibration, clunking noises when shifting, and visible engine movement.
- Standard aftermarket brands like Anchor, DEA, and Westar are affordable and suitable for normal use.
- It is highly recommended to replace both engine mounts and the transmission mount at the same time.
- This is a DIY-feasible job for those with proper tools, but safety precautions like using jack stands and supporting the engine are critical.
Signs of a Failing Engine Mount
The engine mounts on your 1987-1991 V2500 Suburban are simple, but they are under constant stress. Over time, the rubber can dry out, crack, or become saturated with oil, leading to failure. Here are the common symptoms to watch for:
- Excessive Vibrations: This is the most common sign. You might feel a strong vibration in the steering wheel, dashboard, or throughout the cabin, especially when the truck is idling in gear.
- Clunking or Banging Noises: A loud "clunk" when you shift from Park to Drive or Reverse is a classic symptom. You might also hear impact noises when you accelerate or decelerate as the engine shifts and hits other parts.
- Visible Engine Movement: If you have a helper, you can check for this. With the parking brake set and the brake pedal firmly pressed, have them shift between Drive and Reverse. If you see the engine lurch or jump more than an inch or two, the mounts are likely worn out.
- Visual Damage: Sometimes you can see the problem. Look for cracked, torn, or collapsing rubber on the mounts. Oil leaking from the engine can also soak and destroy the rubber over time.
Why You Shouldn't Wait
While a bad engine mount won't typically cause your engine to fall out, it can lead to other problems. Excessive engine movement can damage other components like radiator hoses, exhaust manifolds, and wiring. It's best to replace them as soon as you notice symptoms.
Choosing the Right Aftermarket Mounts
For a vehicle of this age, finding original OEM parts can be difficult and expensive. Aftermarket parts are the most common and practical choice. The engine mounts for the V2500 Suburban are a simple "clamshell" design, and several brands offer replacements.
Brand Tiers for Your Suburban
- Standard Replacement (Budget-Friendly): Brands like Anchor, DEA, and Westar are widely available and affordable. They are considered standard, budget-friendly options that work well for daily driving. Some users in forums report mixed experiences, with some finding them to be a good value while others question their long-term durability compared to original parts. For a stock truck with normal use, these are often a perfectly acceptable choice.
- Enhanced Replacement (Polyurethane): Brands like Prothane offer polyurethane mounts. These are much firmer than the stock rubber mounts. They offer superior durability and control engine movement much more effectively, but they will also transmit more engine vibration into the cabin. These are a good option for heavy-duty use or modified trucks, but may not be ideal if you want a smooth, quiet ride.
Pro Tip: It's highly recommended to replace the engine mounts in pairs. It's also a good time to inspect and likely replace the transmission mount at the same time. This ensures the entire drivetrain is properly supported and aligned.
Cost to Replace Engine Mounts
| Part / Service | Estimated Cost |
|---|---|
| New Aftermarket Engine Mount (Single) | $16.49 - $23.14 |
| Shop Labor Cost (Per Mount) | $100 - $450 |
| Total Professional Replacement (Single Mount) | $117 - $474 |
Note: Labor costs can vary significantly based on your location and the specific shop's rates. The job is generally straightforward on these trucks, so labor should be on the lower end of the scale.
Frequently Asked Questions
How many engine mounts does my 1987-1991 V2500 Suburban have?
These trucks have two engine mounts (left and right) and one transmission mount. It is recommended to replace all three at the same time for best results.
Is it hard to replace the engine mounts myself?
For a DIY mechanic with the right tools, this is a manageable job. You will need a good set of wrenches, a floor jack, and a piece of wood to safely lift the engine. The passenger side can be tricky due to fuel line routing. Always use jack stands for safety when working under your vehicle.
Are there any recalls for the engine mounts on this truck?
No, searches of the National Highway Traffic Safety Administration (NHTSA) database show no recalls specifically for engine mounts on the 1987-1991 GMC V2500 Suburban.
What is the difference between the left and right mount?
On these trucks, the left and right engine mounts are often identical and interchangeable. However, always check the part description to be sure. Some aftermarket kits are sold as a pair.
Technical Specifications
The 1987-1991 GMC V2500 Suburban uses a two-bolt, clamshell-style engine mount. The mounts are typically made of steel and solid rubber.
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.
- GMC V2500 Suburban: