How Much Is a 1987 Gmc Sierra Worth?

The value of a 1987 GMC Sierra depends on condition, mileage, trim level, and originality. Prices typically range from $5,000 to $25,000, with restored or rare models fetching even more.

If you’re wondering, “How much is a 1987 GMC Sierra worth?” you’re not alone. This iconic pickup from the late ’80s has become a favorite among classic truck enthusiasts, restorers, and daily drivers alike. With its bold boxy design, reliable V8 engines, and rugged charm, the 1987 GMC Sierra represents a golden era in American truck manufacturing. Whether you’re looking to buy, sell, or simply appreciate this classic workhorse, understanding its current market value is essential.

The 1987 model year was a pivotal one for GMC. It marked the final year of the C/K series trucks—a platform that had been in production since 1973. These trucks were known for their durability, simplicity, and ease of repair, which has helped them remain popular decades later. The 1987 Sierra, in particular, benefited from a refreshed interior, improved suspension, and a range of engine options that made it suitable for everything from farm work to family road trips.

But value isn’t just about nostalgia. Today’s market for classic trucks is hotter than ever, driven by a mix of baby boomer collectors, younger enthusiasts discovering vintage vehicles, and investors looking for tangible assets. As a result, the price of a 1987 GMC Sierra can vary dramatically—from a few thousand dollars for a rusty project truck to over $25,000 for a show-quality, fully restored example. The key is knowing what drives that value and how to assess a truck’s true worth.

Key Takeaways

• Understanding How Much Is a 1987 GMC Sierra Worth?: Provides essential knowledge

Understanding the 1987 GMC Sierra: A Classic Reborn

The 1987 GMC Sierra was part of the third generation of the C/K series, which ran from 1973 to 1987. This generation is often referred to as the “Square Body” trucks due to their sharp, angular lines and boxy profile—a stark contrast to the rounded designs that followed in the 1988 redesign. The Square Body trucks are now highly sought after for their timeless styling and mechanical simplicity.

GMC offered the Sierra in several body styles, including regular cab, extended cab, and crew cab configurations. Buyers could choose from two-wheel drive (2WD) or four-wheel drive (4WD), with bed lengths ranging from short (6.5 feet) to long (8 feet). The Sierra was positioned as a more upscale alternative to the Chevrolet C/K, featuring nicer interiors, additional chrome trim, and more standard amenities.

Engine options for the 1987 Sierra were diverse, catering to a wide range of needs. The base engine was a 4.3L V6, but most buyers opted for one of the V8s: the 5.0L (305ci), 5.7L (350ci), or the rare 7.4L (454ci) big-block. The 5.7L V8 was the most popular, offering a good balance of power and fuel economy. For those needing serious towing capability, the 7.4L was the go-to choice, though it was less common and typically found in heavy-duty models.

Transmission options included a 4-speed manual, 5-speed manual, or a 4-speed automatic. The automatic was the most common, especially in higher trims. Rear-wheel drive was standard, with 4WD available as an option. The suspension used a solid front axle with coil springs (a first for GM trucks) and a live rear axle with leaf springs—providing a smooth ride for the time.

Trim levels for the 1987 Sierra included the base Sierra, Sierra SLE, and the top-tier Sierra Classic. The SLE added features like power windows, power locks, air conditioning, and upgraded upholstery. The Sierra Classic was the luxury version, often equipped with plush interiors, woodgrain dash accents, and premium sound systems. These higher trims are now the most desirable among collectors.

Factors That Determine the Value of a 1987 GMC Sierra

When evaluating how much a 1987 GMC Sierra is worth, several key factors come into play. These aren’t just about how the truck looks—they’re about its history, mechanical condition, and originality. Let’s break down the most important ones.

1. Condition and Mileage

This is the biggest factor. A 1987 GMC Sierra with low mileage—say, under 80,000 original miles—and in excellent condition will always be worth more than a high-mileage example, even if it runs well. Original paint, a clean interior, and minimal rust are huge pluses.

For example, a Sierra with 60,000 miles, original paint, and a well-maintained engine might sell for $18,000–$22,000. In contrast, a similar truck with 180,000 miles, faded paint, and worn seats might go for $7,000–$10,000—even if it’s mechanically sound.

Rust is a major concern, especially in frames, cab corners, and bed sides. Trucks from the Midwest or Northeast often suffer from salt damage, while those from Arizona or Texas tend to be rust-free. A frame with surface rust might be repairable, but structural rust can drop a truck’s value by thousands.

2. Originality and Matching Numbers

Collectors love originality. A 1987 GMC Sierra with its factory-installed engine (a “numbers-matching” engine), original transmission, and unmodified drivetrain will always command a premium. Modifications like engine swaps, lift kits, or aftermarket stereos can actually decrease value—unless they’re period-correct or professionally done.

For instance, a Sierra with its original 5.7L V8, TH400 automatic transmission, and factory carburetor is more valuable than one with a modern LS swap—even if the LS is more powerful. That’s because originality preserves the truck’s historical integrity.

Original parts like the steering wheel, gauges, and door panels also matter. A truck with all-original interior components is harder to find and more desirable.

3. Trim Level and Options

Not all Sierras are created equal. The base Sierra was a work truck, while the SLE and Sierra Classic were built for comfort and style. Higher trims with options like air conditioning, power steering, power brakes, and cruise control are more valuable.

A 1987 GMC Sierra SLE with a 5.7L V8, automatic transmission, and factory A/C might sell for $15,000–$20,000 in good condition. A base model with the same engine but fewer options might top out at $10,000–$12,000.

Special editions or rare configurations—like a 4WD crew cab with a long bed—can also command higher prices due to their scarcity.

4. Restoration Quality

A professionally restored 1987 GMC Sierra can be worth significantly more than a driver-quality example. But not all restorations are equal. A frame-off, nut-and-bolt restoration with high-quality paint, rebuilt engine, and new interior can push a truck’s value into the $25,000–$35,000 range.

However, a “bondo-and-paint” job—where rust is covered up rather than repaired—can actually hurt value. Buyers can spot poor restorations, and they’ll pay less for them.

It’s also important to note that restoration rarely pays for itself. If you spend $20,000 restoring a $5,000 truck, you might only get $15,000–$18,000 back when you sell. Restoring should be a labor of love, not a financial strategy.

5. Market Demand and Trends

The classic truck market has been on fire for the past 10–15 years. Square Body GM trucks, in particular, have seen steady appreciation. According to Hagerty, a leading classic car insurer, values for 1987 GMC Sierras have increased by an average of 6–8% per year since 2015.

This demand is driven by several factors: nostalgia, the rise of social media car culture, and the increasing cost of new trucks. Younger buyers are discovering the charm of vintage trucks, while older buyers are cashing in on vehicles they owned in their youth.

Seasonality also plays a role. Prices tend to be higher in spring and summer when people are more likely to buy and drive classic vehicles.

Real-World Pricing Examples

To give you a clearer picture, let’s look at some real-world examples of 1987 GMC Sierra sales from recent years. These prices are based on data from auction sites like Bring a Trailer, Hemmings, and eBay Motors, as well as private sales reported in enthusiast forums.

Example 1: Project Truck

A 1987 GMC Sierra 1500 regular cab, 2WD, with a 5.0L V8 and automatic transmission. The truck has 140,000 miles, significant rust on the cab corners and bed, and a non-running engine. Interior is worn, and the paint is faded.

Sale price: $4,200 (private sale, Midwest)

This truck is a candidate for a full restoration or parts donor. The low price reflects the cost of repairs and the risk of hidden damage.

Example 2: Driver-Quality Sierra

A 1987 GMC Sierra SLE extended cab, 4WD, with a 5.7L V8 and automatic transmission. The truck has 95,000 miles, minor surface rust, and a well-maintained engine. Interior is clean, with some wear on the driver’s seat. Paint is original but faded.

Sale price: $12,500 (auction, Texas)

This truck is drivable and presentable but needs cosmetic work. It’s a good value for someone who wants a usable classic without breaking the bank.

Example 3: Show-Quality Restoration

A 1987 GMC Sierra Classic crew cab, 4WD, with a 7.4L V8 and automatic transmission. The truck underwent a 3-year frame-off restoration, including a rebuilt engine, new paint, and a custom interior. Only 68,000 original miles.

Sale price: $28,000 (Bring a Trailer auction)

This truck is essentially new and appeals to collectors. The high price reflects the quality of the restoration and the rarity of a crew cab with a big-block engine.

Example 4: Rare Configuration

A 1987 GMC Sierra 2500 HD with a 6.2L diesel engine and 4-speed manual transmission. The truck has 110,000 miles, no rust, and all-original parts. It’s one of only a few diesel Sierras made that year.

Sale price: $19,500 (private sale, Colorado)

Diesel Square Body trucks are rare and highly sought after by enthusiasts. This one’s value is boosted by its originality and mechanical uniqueness.

How to Accurately Assess a 1987 GMC Sierra’s Value

If you’re buying or selling a 1987 GMC Sierra, it’s important to do your homework. Here’s a step-by-step guide to help you determine a fair price.

Step 1: Research Comparable Sales

Start by looking at recent sales of similar trucks. Use websites like:
– Bring a Trailer (bringatrailer.com)
– Hemmings (hemings.com)
– eBay Motors (ebay.com/motors)
– ClassicCars.com

Filter your search by year, make, model, trim, and location. Pay attention to final sale prices, not just listing prices.

Step 2: Evaluate the Truck’s Condition

Use a 1–5 scale to rate the truck:
– 1: Project/donor vehicle
– 2: Poor condition, needs major work
– 3: Fair condition, drivable but needs repairs
– 4: Good condition, minor flaws
– 5: Excellent/Concours condition

Be honest. A truck with a clean title and low miles but rust damage is still a 2 or 3.

Step 3: Check for Originality

Look for:
– Matching engine and transmission numbers
– Original paint (check VIN tags on doors and fenders)
– Factory interior components
– Unmodified suspension and drivetrain

Originality can add 20–30% to a truck’s value.

Step 4: Consider Location

Trucks in dry climates (Southwest, Southeast) typically sell for 10–15% more than those in rust-prone areas. Shipping costs can also affect final price.

Step 5: Get a Professional Inspection

If you’re spending more than $10,000, hire a mechanic or classic car inspector to evaluate the truck. They can spot hidden issues like frame damage, engine wear, or electrical problems.

Tips for Buying or Selling a 1987 GMC Sierra

Whether you’re in the market to buy or sell, these tips will help you get the best deal.

For Buyers:

• Set a budget and stick to it. Include room for repairs and upgrades.
• Buy the best example you can afford. A $15,000 truck in great condition is often a better investment than a $10,000 project.
• Inspect for rust thoroughly. Check frame rails, cab mounts, and bed supports.
• Test drive the truck. Listen for unusual noises, check transmission shifts, and test 4WD (if equipped).
• Ask for documentation. Service records, repair receipts, and owner history add value.

For Sellers:

• Clean the truck inside and out. A detailed wash and interior cleaning can increase perceived value.
• Fix minor issues. Replace burnt-out bulbs, fix door handles, and top off fluids.
• Take high-quality photos. Show the truck from multiple angles, including close-ups of the engine, interior, and undercarriage.
• Write a detailed description. Include mileage, trim, engine size, transmission, options, and condition.
• Price competitively. Check recent sales and price slightly below market if you want a quick sale.

The Future of the 1987 GMC Sierra

As we look ahead, the 1987 GMC Sierra is likely to remain a popular classic truck. Its combination of style, simplicity, and durability ensures it will stay in demand for years to come. While values may fluctuate with the economy, the long-term trend is upward—especially for well-preserved examples.

Restomods—classic trucks with modern upgrades like fuel injection, disc brakes, and air conditioning—are also gaining popularity. These builds offer the best of both worlds: vintage looks with modern reliability. A restomod 1987 Sierra with an LS engine and modern suspension can easily sell for $30,000 or more.

However, purists will always prefer original, unrestored trucks. As fewer clean examples remain on the road, their value will continue to rise.

For now, the 1987 GMC Sierra sits in a sweet spot: it’s old enough to be classic, but not so old that it’s fragile. It’s affordable enough for first-time collectors, yet valuable enough to be a smart investment.

Conclusion

So, how much is a 1987 GMC Sierra worth? The answer isn’t simple—it depends on a mix of condition, originality, trim, and market trends. But as a general rule, you can expect to pay anywhere from $5,000 for a project truck to $25,000 or more for a show-quality example.

The key is doing your research, knowing what to look for, and understanding what drives value in the classic truck market. Whether you’re buying, selling, or just admiring these iconic trucks, the 1987 GMC Sierra remains a symbol of American automotive heritage—and a worthy addition to any collection.

With its rugged design, reliable mechanics, and growing collector appeal, the Square Body Sierra isn’t just a truck. It’s a piece of history on wheels.

Frequently Asked Questions

What is the average price of a 1987 GMC Sierra?

The average price of a 1987 GMC Sierra ranges from $10,000 to $18,000, depending on condition, mileage, and trim level. Driver-quality examples typically fall in this range.

Is a 1987 GMC Sierra a good investment?

Yes, especially if it’s in good condition and original. Classic GM trucks have appreciated steadily, and well-maintained Sierras are likely to increase in value over time.

What engine options were available in the 1987 GMC Sierra?

The 1987 Sierra offered a 4.3L V6, 5.0L V8, 5.7L V8, and a rare 7.4L V8. Diesel options included a 6.2L engine, though these are much less common.

How can I tell if a 1987 GMC Sierra is original?

Check for matching engine and transmission numbers, original paint (look for factory stamps), and unmodified interior and drivetrain components. Documentation helps confirm originality.

Are 1987 GMC Sierras reliable?

Yes, especially the 5.7L V8 models. These trucks are known for their durability and ease of repair, making them popular as daily drivers or weekend cruisers.

Where can I find a 1987 GMC Sierra for sale?

Check auction sites like Bring a Trailer, classifieds on Hemmings and ClassicCars.com, and enthusiast forums like The 1947 – Present Truck Forum. Local car shows and swap meets are also good sources.