1986-87 Chevy Trucks for Sale: The Enduring Appeal of the Squarebody’s Final Frontier

The automotive landscape of the mid-1980s was a fascinating crossroads, a blend of classic design principles and emerging technological advancements. Within this period, the 1986 and 1987 Chevrolet C/K series trucks hold a unique and cherished place. Representing the swansong of the iconic "Squarebody" generation, these trucks combine timeless rugged aesthetics with a crucial technological leap: the introduction of Throttle Body Injection (TBI) for their V8 engines. For enthusiasts, collectors, and practical users alike, finding 1986-87 Chevy trucks for sale means an opportunity to own a piece of automotive history that is both eminently usable and increasingly collectible. This comprehensive guide will delve into what makes these trucks special, what to look for when buying, and what to expect from ownership.

Why 1986-87 Chevy Trucks Stand Out

The appeal of the 1986-87 Chevy trucks is multifaceted, blending nostalgia with practical advantages. They represent the culmination of over a decade of the Squarebody design, refined and updated with features that make them more amenable to modern driving than their carbureted predecessors.

The Squarebody Legacy

The third-generation C/K series, affectionately known as the "Squarebody," debuted in 1973 and quickly became a design icon. Its clean, angular lines, broad stance, and utilitarian appeal resonated with a wide audience. By 1986, the design had been thoroughly proven, establishing a reputation for durability and straightforward functionality. The ’86 and ’87 models carry this torch proudly, offering the quintessential Squarebody look that remains highly desirable today.

Transitional Years: Classic Meets Modern

These two model years are pivotal because they bridge the gap between the purely mechanical era and the dawn of electronic fuel management. While the exterior and much of the interior remained classic Squarebody, under the hood, significant changes were taking place. This transition offers a unique blend: the robust, easy-to-work-on nature of an older truck combined with the improved starting, driveability, and (modest) fuel efficiency benefits of early electronic fuel injection.

The Dawn of Fuel Injection (TBI)

Perhaps the most significant differentiator for the 1986-87 V8 models was the widespread adoption of Throttle Body Injection (TBI). While some California-bound 1985 trucks saw TBI, 1986 marked its national rollout, making it standard on most V8 engines. This system replaced the traditional carburetor, offering:

• Improved Cold Starts: No more pumping the gas pedal or wrestling with chokes.
• Better Fuel Economy: More precise fuel delivery meant less waste.
• Enhanced Reliability: Fewer moving parts than a complex carburetor, and less prone to issues from fuel impurities.
• Smoother Power Delivery: More consistent engine performance across varying conditions.
  While not as sophisticated as multi-port injection, TBI was a significant step forward, making these trucks more user-friendly for daily driving.

Durability, Simplicity, and Parts Availability

Chevy trucks of this era were built tough. Their robust frames, simple mechanicals, and relatively basic electronics contribute to their legendary durability. For owners, this translates into a vehicle that is often easier and cheaper to maintain than modern trucks. Furthermore, due to the immense popularity and long production run of the Squarebody platform (many components were shared from 1973-1991, especially with SUVs), parts availability for these trucks is exceptionally good. Whether you need a fender, an engine component, or an interior trim piece, you’ll likely find it, often at reasonable prices.

Key Models and Configurations to Look For

When searching for 1986-87 Chevy trucks for sale, you’ll encounter a variety of configurations tailored for different needs. Understanding these options is crucial for finding the right truck for you.

C/K Series Designations

• C-Series: Denotes two-wheel-drive (2WD) models. These are typically lighter, offer a smoother ride, and are often preferred for street performance builds or daily driving where 4WD isn’t necessary.
• K-Series: Denotes four-wheel-drive (4WD) models. Built for off-road capability, adverse weather, or heavy-duty work, K-series trucks feature a robust transfer case and solid front axle.

Payload and Size

The numeric designations indicate the truck’s payload capacity:

• 10/1500 Series (Half-Ton): The most common and versatile, suitable for light hauling and general use. Available as C10 or K10.
• 20/2500 Series (Three-Quarter-Ton): Heavier duty, with stronger suspensions, brakes, and sometimes larger engines, designed for more significant loads. Available as C20 or K20.
• 30/3500 Series (One-Ton): The heaviest duty, often with dual rear wheels (dually) and the largest engines, built for serious towing and hauling. Available as C30 or K30.

Body Styles

• Regular Cab: The classic two-door truck, available with a short wheelbase (SWB, typically 6.5-foot bed) or a long wheelbase (LWB, typically 8-foot bed). The SWB C10 is a perennial favorite for custom builds.
• Crew Cab: A four-door configuration, offering seating for up to six passengers. These are highly sought after, especially the K30 4×4 crew cabs, due to their rarity and utility for families or work crews. They typically came with an 8-foot bed.

Engine Options

• 4.3L V6 (TBI): Standard on many base models, offering decent fuel economy for its time.
• 5.0L (305 ci) V8 (TBI): A common V8 option, providing more power than the V6, suitable for general use.
• 5.7L (350 ci) V8 (TBI): The most popular and arguably best all-around engine, offering a strong balance of power and reliability. This is the engine many enthusiasts seek due to its performance potential and vast aftermarket support.
• 7.4L (454 ci) V8 (TBI): The "Big Block" V8, primarily found in 3/4-ton and 1-ton trucks, designed for maximum towing and hauling.
• 6.2L Detroit Diesel V8: A naturally aspirated diesel option, known for its longevity and fuel efficiency (for a truck of its size), though not for speed.

Transmission Options

• Manual: 4-speed (SM465, very durable) and 5-speed (NV4500, often an aftermarket upgrade) options.
• Automatic: TH350 (3-speed, common on lighter duty), TH400 (3-speed, heavy-duty applications), and the 700R4 (4-speed with overdrive, offering better highway fuel economy). The 700R4 is particularly desirable for daily drivers.

What to Look For When Buying (A Buyer’s Guide)

Purchasing a nearly 40-year-old truck requires a discerning eye. While these trucks are robust, time and neglect can take their toll.

1. Rust, Rust, Rust: This is the number one enemy.
   • Cab Corners and Rocker Panels: Very common rust spots. Check thoroughly from inside and out.
   • Fenders and Wheel Arches: Especially behind the front wheels and on the bed’s rear arches.
   • Bed Floor and Supports: Check for rot, especially near the wheel wells and under the bed liner.
   • Frame: Inspect the entire frame for excessive surface rust, rot-through, or previous weld repairs that look suspicious. Pay attention to spring hangers and body mounts.
   • Inner Fenders and Core Support: Check for rust around battery trays and radiator supports.
2. Engine Condition:
   • Cold Start: Listen for excessive cranking, rough idle, or unusual noises (knocking, ticking).
   • Smoke: Blue smoke (oil burning), white smoke (coolant), black smoke (rich fuel mixture).
   • Fluid Leaks: Check for oil, coolant, power steering, and transmission fluid leaks.
   • TBI Unit: Inspect for fuel leaks around the injectors or base. Ensure the throttle linkage moves freely.
   • Vacuum Lines: Old, cracked vacuum lines can cause rough idle and poor performance.
3. Transmission and Drivetrain:
   • Automatic: Check fluid color (should be red, not brown or black) and smell (not burnt). Test all gears, including overdrive. Listen for slipping or hard shifts.
   • Manual: Check clutch engagement, shifter feel, and listen for grinding.
   • 4WD (K-series): Engage 4-high and 4-low. Listen for clunks or binding. Ensure the front hubs engage. Check the transfer case for leaks.
   • Differential: Listen for humming or clunking noises. Check for leaks.
4. Chassis and Suspension:
   • Steering: Check for excessive play in the steering wheel. Look for worn tie rods, ball joints, and steering box leaks.
   • Suspension: Look for sagging springs, worn shocks, and cracked bushings.
   • Brakes: Test thoroughly. Check for pulling, pulsing, or soft pedal. Inspect lines and calipers/wheel cylinders for leaks.
5. Interior and Electrical:
   • Dash Pad: Prone to cracking.
   • Seats: Check for rips, tears, and frame integrity.
   • Gauges and Lights: Ensure all dashboard lights and gauges (oil pressure, temp, fuel, speedometer) work. Test exterior lights, turn signals, and wipers.
   • HVAC: Check if the heater and AC (if equipped) work.
   • Windows: Test manual or power windows.
6. Paperwork: Ensure the title is clear and matches the VIN. Look for service records if available.
7. Pre-Purchase Inspection (PPI): If you’re serious about a truck, invest in a professional inspection by a mechanic familiar with older vehicles. They can spot issues you might miss.

Owning and Maintaining a 1986-87 Chevy Truck

Owning a 1986-87 Chevy truck is generally a rewarding experience, especially for those who appreciate a simpler, more mechanical vehicle.

Parts Availability

As mentioned, parts availability is excellent. Many components are still manufactured new (reproduction panels, interior pieces, engine components), and used parts are abundant from donor vehicles and salvage yards. Online forums and specialized retailers are invaluable resources.

DIY Friendly

Compared to modern vehicles laden with complex electronics, these trucks are relatively straightforward to work on. Basic mechanical knowledge and a good set of tools will get you far. There’s a wealth of online tutorials, repair manuals, and a supportive community of Squarebody enthusiasts.

Common Issues and Solutions

• Fuel Pump: The electric fuel pump in the tank can fail. Replacement is common and relatively easy.
• TBI Unit Wear: Injectors can get clogged or leak, and the throttle shaft can wear, causing vacuum leaks. Rebuild kits and replacement units are available.
• Vacuum Leaks: Old rubber vacuum lines dry out and crack, leading to rough idle and poor performance. Inspect and replace as needed.
• Rust: Ongoing rust prevention is key, especially if you live in a rust-prone area.
• 700R4 Transmission: Known for some weaknesses, especially if abused or not properly maintained. Upgraded components are available to improve durability.

Upgrades and Customization

These trucks are a blank canvas for customization. Popular upgrades include:

• Suspension: Lowering kits for C-series, lift kits for K-series. Modern shocks and sway bars for improved handling.
• Brakes: Disc brake conversions for the rear, or larger front disc brakes for better stopping power.
• Interior: Upgrading seats, sound system, and insulation for comfort.
• Engine Swaps: While the TBI 350 is good, many opt for more powerful modern LS-series V8 swaps for significant power and efficiency gains.
• Wheels and Tires: A wide array of aftermarket options to personalize the look.

Pricing Guide: What to Expect

The price of a 1986-87 Chevy truck can vary wildly depending on several factors: condition, specific model (C10 SWB vs. K30 Crew Cab), engine, transmission, originality, modifications, and geographical location. Generally, 4×4 models and short-bed C10s command higher prices, with crew cabs at the top of the range.

Here’s a general price table to give you an idea of what to expect:

Model/Configuration	Condition: Rough/Project	Condition: Driver Quality	Condition: Restored/Show
C10 Regular Cab SWB (5.7L)	$3,000 – $7,000	$8,000 – $18,000	$20,000 – $40,000+
C10 Regular Cab LWB (5.7L)	$2,500 – $6,000	$7,000 – $15,000	$18,000 – $35,000+
K10 Regular Cab (4×4, 5.7L)	$4,000 – $9,000	$10,000 – $25,000	$28,000 – $50,000+
C20/K20 (Heavy Duty)	$3,500 – $8,000	$8,000 – $20,000	$22,000 – $45,000+
K30 Crew Cab (4×4, 7.4L/6.2L)	$5,000 – $12,000	$15,000 – $35,000	$40,000 – $70,000+
Less Common Configurations (e.g., V6)	$2,000 – $5,000	$6,000 – $12,000	$15,000 – $25,000

Note: Prices are estimates and can fluctuate significantly based on market demand, location, specific features, and the seller’s motivation.

Frequently Asked Questions (FAQ)

Q: Are 1986-87 Chevy trucks reliable?

A: Yes, generally very reliable, especially if well-maintained. The TBI system improved cold starts and general driveability over older carbureted models. Their robust mechanicals are built to last.

Q: What’s the main difference between 1986 and 1987 models?

A: Very little. 1987 saw the standardization of the "R" and "V" chassis designations (R for 2WD, V for 4WD) instead of C and K for the last year of the Squarebody, but mechanically and aesthetically, they are nearly identical to the 1986 models. The "C/K" designation returned with the introduction of the GMT400 body style in 1988.

Q: Is TBI a good system?

A: For its time, TBI was a significant improvement over carburetors. It offers better reliability, easier starting, and smoother operation. While not as efficient or powerful as modern multi-port injection, it’s a solid, simple system that’s easy to diagnose and repair.

Q: Where can I find parts for these trucks?

A: Parts are readily available from local auto parts stores, online retailers specializing in classic truck parts (e.g., LMC Truck, Classic Industries), junkyards, and online marketplaces like eBay.

Q: What should I budget for restoration/repairs?

A: This varies greatly. A running "driver" might only need basic maintenance ($500-$1,500/year). A truck needing rust repair and paint can easily run $5,000-$15,000+. Full frame-off restorations can exceed $30,000-$50,000+, depending on the level of detail and professional labor involved.

Q: Are they good daily drivers?

A: Many people use them as daily drivers. With the 700R4 transmission (for overdrive) and a reliable TBI V8, they can be perfectly suitable. However, be prepared for a firmer ride, less modern safety features, and generally lower fuel economy than contemporary vehicles.

Conclusion: A Classic Investment or a Reliable Workhorse?

The 1986-87 Chevy trucks represent the pinnacle of the beloved Squarebody era, offering a compelling blend of vintage charm and improved functionality thanks to the introduction of TBI. Whether you’re seeking a reliable workhorse, a platform for a custom build, or a piece of automotive history to cherish, these trucks offer immense value and a burgeoning enthusiast community. Their robust construction, straightforward mechanics, and excellent parts availability make them an attractive proposition for anyone looking to own a classic American pickup. Investing in a well-maintained 1986-87 Chevy truck is not just buying a vehicle; it’s acquiring a tangible piece of automotive heritage that continues to appreciate in appeal and value.