The 1991 Chevrolet GMT-400 introduced a revolutionary platform for GM's full-size C/K pickup trucks and SUVs. This body style ran from 1988-1998 for pickups. Key trims included Cheyenne and Silverado. New pricing ranged from approximately $10,000 to $25,000+. It stood out for its sleek, aerodynamic design and improved ride, quickly becoming popular for its blend of modern aesthetics, robust utility, and legendary durability.
The Good
Its key advantages include robust V8 engine options delivering impressive performance and towing, coupled with legendary reliability appealing to practical buyers. The GMT-400's modern (for its era) and comfortable design still holds emotional appeal. Excellent parts availability and strong aftermarket support ensure great long-term value, making it an enduring, practical classic.
The Bad
Watch out for common weaknesses like significant rust on rocker panels and wheel wells. Fuel pump failures are frequent, as are issues with the ABS module and steering components. Electrical gremlins and clear coat paint delamination are also prevalent, requiring thorough inspection before purchase.
1991 Chevrolet GMT-400: Quick Overview
- Engine Options:
- 4.3L Vortec V6 (Throttle Body Injection - TBI)
- 5.0L (305 cu in) V8 (TBI)
- 5.7L (350 cu in) V8 (TBI) - Most popular, workhorse engine.
- 6.2L Diesel V8 (for heavier-duty applications)
- 7.4L (454 cu in) Big Block V8 (TBI) - Maximum power and towing, primarily in 2500/3500 series.
- Horsepower (approximate):
- 4.3L V6: ~160 HP
- 5.0L V8: ~170 HP
- 5.7L V8: ~190-210 HP
- 6.2L Diesel V8: ~130 HP
- 7.4L V8: ~230 HP
- Fuel Economy (approximate combined MPG):
- 4.3L V6 2WD: 15-18 MPG
- 5.7L V8 2WD: 12-16 MPG
- 7.4L V8: Single digits to low teens. (Highly variable based on driving conditions, maintenance, and load)
- 0-60 MPH Times:
- Generally 9-12 seconds for V8 models, slower for V6/diesel. Not built for speed, times vary greatly with configuration.
- Towing Capacity (if applicable):
- 1500 Series (5.7L V8): ~6,000-8,000 lbs
- 2500/3500 Series (7.4L V8): Can exceed 10,000 lbs, up to 12,500 lbs with proper gearing and setup.
- Trim-Level Features:
- Work Truck (WT) / Cheyenne: Basic work-oriented trim. Vinyl seats, rubber floor mats, manual windows and locks, AM/FM radio, minimal creature comforts, focused on durability and affordability.
- Silverado: Higher trim level. Featured cloth upholstery, power windows and locks, air conditioning (often standard here, optional on lower trims), tilt steering column, cruise control, upgraded audio systems, full instrumentation, and more appealing exterior chrome accents and wheel options. Provided a more comfortable and feature-rich driving experience.
1991 Chevrolet GMT-400 Specifications
Vehicle Information
| Year | 1991 |
| Make | Chevrolet |
| Model | GMT-400 |
| Trim | - |
| Style | - |
| Type | Pickup Truck |
| Category | Standard Pickup Truck |
Manufacturing Details
| Made In | Canada |
| Manufacturing City | OSHAWA TRUCK |
Dimensions
| Doors | 2-Door |
| Curb Weight | 5532 pounds |
| Gross Vehicle Weight Rating | 14000 pounds |
| Overall Height | 75.80 inches |
| Overall Length | 237.00 inches |
| Overall Width | 94.20 inches |
| Wheelbase Length | 155.50 inches |
| Standard Seating | 3 |
Engine & Performance
| Engine | 6.2L V8 |
| Engine Size | 6.2L |
| Engine Cylinders | 8 |
| Transmission | 4-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 4-Speed |
| Drivetrain | Four-Wheel Drive |
Additional Features
| Anti-Brake System | Non-ABS |
| Steering Type | Recirculating |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $21,485 |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 1991 Chevrolet GMT-400 Have?
The 1991 Chevrolet GMT-400, while robust, is prone to several frequently reported problems. A very common issue is fuel pump failure, often leading to stalling or hard starting, usually requiring replacement of the entire sending unit. Electrical gremlins are also prevalent, with deteriorating wiring harnesses causing intermittent problems with gauges, lights, and power accessories. The 4L60E automatic transmission, especially early versions, can be a weak point, exhibiting harsh shifts, slipping, or outright failure, particularly if subjected to heavy towing or infrequent fluid changes. Manual transmissions generally prove more reliable.
Rust is a major long-term concern, especially in areas exposed to road salt. Expect to find corrosion on rocker panels, cab corners, wheel wells, and frame components. Another widespread cosmetic issue is paint clear coat delamination, causing the paint to peel or fade significantly. Steering and suspension components, such as idler arms, pitman arms, and ball joints, are common wear items that require replacement over time due to the truck's weight and usage. Brake system issues, including ABS module (RWAL) failure and corroded brake lines, are also common.
Regarding recalls, owners should check their specific VIN with the NHTSA database for the most accurate information. General Motors had various recalls for GMT-400 vehicles, some concerning cruise control wiring (fire risk) or seat belt components, though specific 1991 model year widespread recalls might be limited compared to later years. Long-term reliability is excellent if these common issues are addressed proactively; however, neglecting them can lead to significant repair costs.
Rust is a major long-term concern, especially in areas exposed to road salt. Expect to find corrosion on rocker panels, cab corners, wheel wells, and frame components. Another widespread cosmetic issue is paint clear coat delamination, causing the paint to peel or fade significantly. Steering and suspension components, such as idler arms, pitman arms, and ball joints, are common wear items that require replacement over time due to the truck's weight and usage. Brake system issues, including ABS module (RWAL) failure and corroded brake lines, are also common.
Regarding recalls, owners should check their specific VIN with the NHTSA database for the most accurate information. General Motors had various recalls for GMT-400 vehicles, some concerning cruise control wiring (fire risk) or seat belt components, though specific 1991 model year widespread recalls might be limited compared to later years. Long-term reliability is excellent if these common issues are addressed proactively; however, neglecting them can lead to significant repair costs.
How long will the 1991 Chevrolet GMT-400 last?
The 1991 Chevrolet GMT-400 is renowned for exceptional longevity. With good maintenance habits, these trucks routinely achieve 200,000 to 300,000 miles, with many examples surpassing 400,000 miles and providing over 25-30 years of service.
Long-term durability: Its strong body-on-frame construction, robust small-block V8 engines, and simple mechanicals contribute to its resilience. Parts are widely available and affordable, easing long-term ownership.
Weaknesses over time: Key concerns are rust, particularly on body panels and frame, which can compromise structural integrity. The 4L60E automatic transmission is a common failure point, especially under heavy loads or neglect. Electrical issues become more frequent with age. Consistent fluid changes and prompt attention to minor repairs are crucial to reaching its full potential lifespan.
Long-term durability: Its strong body-on-frame construction, robust small-block V8 engines, and simple mechanicals contribute to its resilience. Parts are widely available and affordable, easing long-term ownership.
Weaknesses over time: Key concerns are rust, particularly on body panels and frame, which can compromise structural integrity. The 4L60E automatic transmission is a common failure point, especially under heavy loads or neglect. Electrical issues become more frequent with age. Consistent fluid changes and prompt attention to minor repairs are crucial to reaching its full potential lifespan.
What Technology & Safety Features are Included?
The 1991 Chevrolet GMT-400 was a utilitarian vehicle, and its built-in technology reflected the era's standards for trucks. Advanced electronics were minimal.
Built-in Tech & Entertainment: Standard entertainment was typically an AM/FM stereo radio. Higher trims or optional packages could include an AM/FM radio with a cassette player, and sometimes a basic graphic equalizer. Upgraded speaker systems were also available. There was no provision for CD players, navigation, or modern infotainment screens. Climate control consisted of basic manual air conditioning and heating controls. The instrument cluster usually featured a speedometer, odometer, fuel gauge, oil pressure, coolant temperature, and voltmeter, with a tachometer often being an option.
Driver-Assistance Features: Driver-assistance technology as we know it today was non-existent. Features like automatic emergency braking, lane-keeping assist, or blind-spot monitoring were decades away. The primary "driver assistance" features were power steering, which was standard on most models, and an optional basic cruise control system available on higher trim levels.
Safety Features: Safety features were also fundamental. Driver-side airbags were not standard and generally not available in these trucks for the 1991 model year. Passenger airbags were even further in the future. Three-point lap/shoulder belts were provided for front outboard occupants, with lap belts for any rear passengers in extended cab or Suburban models. A significant safety enhancement for the time was the inclusion of Rear Wheel Anti-Lock (RWAL) brakes, designed to prevent the rear wheels from locking up during hard braking. Full 4-wheel ABS was not common until later in the GMT-400 production run. The truck's robust body-on-frame construction offered a degree of passive safety. Official, standardized crash-test ratings from organizations like NHTSA or IIHS are typically not available for vehicles of this vintage in a format comparable to modern ratings, as safety testing standards have evolved significantly since 1991.
Built-in Tech & Entertainment: Standard entertainment was typically an AM/FM stereo radio. Higher trims or optional packages could include an AM/FM radio with a cassette player, and sometimes a basic graphic equalizer. Upgraded speaker systems were also available. There was no provision for CD players, navigation, or modern infotainment screens. Climate control consisted of basic manual air conditioning and heating controls. The instrument cluster usually featured a speedometer, odometer, fuel gauge, oil pressure, coolant temperature, and voltmeter, with a tachometer often being an option.
Driver-Assistance Features: Driver-assistance technology as we know it today was non-existent. Features like automatic emergency braking, lane-keeping assist, or blind-spot monitoring were decades away. The primary "driver assistance" features were power steering, which was standard on most models, and an optional basic cruise control system available on higher trim levels.
Safety Features: Safety features were also fundamental. Driver-side airbags were not standard and generally not available in these trucks for the 1991 model year. Passenger airbags were even further in the future. Three-point lap/shoulder belts were provided for front outboard occupants, with lap belts for any rear passengers in extended cab or Suburban models. A significant safety enhancement for the time was the inclusion of Rear Wheel Anti-Lock (RWAL) brakes, designed to prevent the rear wheels from locking up during hard braking. Full 4-wheel ABS was not common until later in the GMT-400 production run. The truck's robust body-on-frame construction offered a degree of passive safety. Official, standardized crash-test ratings from organizations like NHTSA or IIHS are typically not available for vehicles of this vintage in a format comparable to modern ratings, as safety testing standards have evolved significantly since 1991.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
1991 Chevrolet GMT-400 Prices and Market Value
When new in 1991, the Chevrolet GMT-400 C/K pickup prices ranged from approximately $10,000 for a basic Work Truck to over $25,000 for a loaded Silverado extended cab 4x4.
Current Used Market Prices: Today, used prices vary wildly based on condition. A neglected example might sell for $2,000-$5,000. Clean, well-maintained, or lower-mileage trucks, especially 4x4 V8 Silverado models, can command $8,000-$15,000. Restored examples can exceed $20,000-$30,000, appealing to collectors.
Depreciation Insights: These trucks have long since bottomed out their depreciation. Their value is now appreciating for well-preserved examples, driven by nostalgia and their reputation for durability.
Factors Affecting Resale Value: Key factors include overall condition (minimal rust is crucial), mileage, engine type (V8s are preferred), 4x4 capability, trim level (Silverado is highly desirable), and maintenance history. Originality and quality modifications also play a significant role.
Current Used Market Prices: Today, used prices vary wildly based on condition. A neglected example might sell for $2,000-$5,000. Clean, well-maintained, or lower-mileage trucks, especially 4x4 V8 Silverado models, can command $8,000-$15,000. Restored examples can exceed $20,000-$30,000, appealing to collectors.
Depreciation Insights: These trucks have long since bottomed out their depreciation. Their value is now appreciating for well-preserved examples, driven by nostalgia and their reputation for durability.
Factors Affecting Resale Value: Key factors include overall condition (minimal rust is crucial), mileage, engine type (V8s are preferred), 4x4 capability, trim level (Silverado is highly desirable), and maintenance history. Originality and quality modifications also play a significant role.
1991 Chevrolet GMT-400 Cost of Ownership
Owning a 1991 Chevrolet GMT-400 can be surprisingly economical.
Insurance: Typically low for liability coverage due to its age and modest replacement value, unless it's a highly valued, classic-insured vehicle.
Fuel: This is often the highest ownership cost. The V8 engines, particularly the 7.4L, are quite thirsty, yielding 10-15 MPG on average, making fuel a significant expense.
Maintenance/Repairs: Parts are abundant and generally inexpensive. Most common repairs are straightforward, allowing for DIY or affordable independent mechanic work. Expect routine replacements for wear items like brakes and suspension components.
Long-term: It's an economical vehicle to own for its class, provided consistent maintenance prevents major issues. Neglected trucks will eventually require costly repairs like transmission overhauls or extensive rust remediation. Overall, it's economical if you accept its fuel consumption and perform regular upkeep.
Insurance: Typically low for liability coverage due to its age and modest replacement value, unless it's a highly valued, classic-insured vehicle.
Fuel: This is often the highest ownership cost. The V8 engines, particularly the 7.4L, are quite thirsty, yielding 10-15 MPG on average, making fuel a significant expense.
Maintenance/Repairs: Parts are abundant and generally inexpensive. Most common repairs are straightforward, allowing for DIY or affordable independent mechanic work. Expect routine replacements for wear items like brakes and suspension components.
Long-term: It's an economical vehicle to own for its class, provided consistent maintenance prevents major issues. Neglected trucks will eventually require costly repairs like transmission overhauls or extensive rust remediation. Overall, it's economical if you accept its fuel consumption and perform regular upkeep.
1991 Chevrolet GMT-400 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
34.00 gallons
City Mileage
16 miles/gallon
Highway Mileage
21 miles/gallon
1991 Chevrolet GMT-400 Safety Rating
NHTSA
IIHS
1991 Chevrolet GMT-400 Warranty
Basic
Original warranty
0 months / No data
Estimated remaining
Expired
Powertrain
Original warranty
0 months / No data
Estimated remaining
Expired
Rust
Original warranty
0 months / No data
Estimated remaining
Expired
1991 Chevrolet GMT-400 Insurance
Insurance for a 1991 Chevrolet GMT-400 is moderately priced, reflecting its status as a Pickup Truck with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 1991 Chevrolet GMT-400 Compare to Other Pickup Truck?
The 1991 Chevrolet GMT-400 competed directly with the Ford F-150/F-250 (ninth generation, though the previous gen was still prominent in '91) and the Dodge Ram (first generation).
Performance: The GMT-400's range of V8 engines, especially the 5.7L and 7.4L TBI powerplants, offered competitive performance and towing capacity, often matching or slightly exceeding its Ford counterparts (5.0L, 5.8L, 7.5L) in output. Dodge Rams of this era, while robust, generally had less refined and slightly less powerful engines. GM's TBI system was known for reliability and decent cold-weather starts.
Features: GM was lauded for its more aerodynamic design and a more car-like, comfortable interior compared to its rivals. It offered standard power steering, optional power windows/locks, A/C, and cruise control, similar to Ford. Dodge's interior, however, felt more dated and utilitarian. The GMT-400 often had a perceived edge in ride quality and interior ergonomics.
Reliability: All three manufacturers built tough trucks. The GMT-400 and F-Series share a reputation for long-term durability, though both are susceptible to rust and common issues like fuel pump failures. The GM 4L60E automatic transmission can be a weaker link compared to Ford's E4OD or manual transmissions if not properly maintained. The GM small-block V8s, however, are legendary for their longevity.
Price: New, they were all similarly priced. Today, well-preserved GMT-400s and equivalent F-Series models often command higher used market prices than comparable Dodge Rams due to their enduring popularity, greater production numbers, and robust aftermarket support. The GMT-400 has experienced a surge in collector interest.
Alternatives:
Performance: The GMT-400's range of V8 engines, especially the 5.7L and 7.4L TBI powerplants, offered competitive performance and towing capacity, often matching or slightly exceeding its Ford counterparts (5.0L, 5.8L, 7.5L) in output. Dodge Rams of this era, while robust, generally had less refined and slightly less powerful engines. GM's TBI system was known for reliability and decent cold-weather starts.
Features: GM was lauded for its more aerodynamic design and a more car-like, comfortable interior compared to its rivals. It offered standard power steering, optional power windows/locks, A/C, and cruise control, similar to Ford. Dodge's interior, however, felt more dated and utilitarian. The GMT-400 often had a perceived edge in ride quality and interior ergonomics.
Reliability: All three manufacturers built tough trucks. The GMT-400 and F-Series share a reputation for long-term durability, though both are susceptible to rust and common issues like fuel pump failures. The GM 4L60E automatic transmission can be a weaker link compared to Ford's E4OD or manual transmissions if not properly maintained. The GM small-block V8s, however, are legendary for their longevity.
Price: New, they were all similarly priced. Today, well-preserved GMT-400s and equivalent F-Series models often command higher used market prices than comparable Dodge Rams due to their enduring popularity, greater production numbers, and robust aftermarket support. The GMT-400 has experienced a surge in collector interest.
Alternatives:
- Ford F-150/F-250 (1987-1996): A very similar, equally reliable alternative with a vast aftermarket. It offers a comparable experience, though ride quality might be slightly firmer.
- Dodge Ram (1981-1993): A more 'old-school' truck, often available at a lower price point, but generally less refined in ride and interior.
Final Verdict: Is the 1991 Chevrolet GMT-400 a Good Pickup Truck?
The 1991 Chevrolet GMT-400 is ideal for enthusiasts, DIYers, or anyone needing a genuinely capable, no-frills, and highly reliable full-size pickup. It appeals to those who appreciate classic American truck design, mechanical simplicity, and abundant parts availability.
Is it worth buying? Absolutely, if you find one in well-maintained condition. Its legendary durability and relatively low cost of ownership (excluding fuel) make it a smart purchase.
Under what conditions? Focus on a used model with minimal rust, especially on the frame and body panels. Prioritize trucks with the 5.7L or 7.4L V8 engines for optimal power and reliability. Silverado trims offer the best balance of features and comfort. Be prepared for its modest fuel economy and the ongoing maintenance expected of a vehicle over three decades old. It's a fantastic buy for utility, classic styling, and a dependable workhorse.
Is it worth buying? Absolutely, if you find one in well-maintained condition. Its legendary durability and relatively low cost of ownership (excluding fuel) make it a smart purchase.
Under what conditions? Focus on a used model with minimal rust, especially on the frame and body panels. Prioritize trucks with the 5.7L or 7.4L V8 engines for optimal power and reliability. Silverado trims offer the best balance of features and comfort. Be prepared for its modest fuel economy and the ongoing maintenance expected of a vehicle over three decades old. It's a fantastic buy for utility, classic styling, and a dependable workhorse.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.