OBS Chevy Trucks for Sale
OBS Chevy trucks—produced from 1988 to 1998—represent a key era of Chevrolet and GMC full-size pickups. Known for their clean body lines, durable V8 engines, and strong aftermarket support, these GMT400 trucks remain a popular choice for collectors, restorations, and daily-driven classic 4×4 builds.
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What is an OBS Chevy Truck?
“OBS” stands for “Old Body Style,” a term enthusiasts use to describe Chevrolet and GMC trucks produced from 1988 through 1998 before the introduction of the GMT800 generation. These trucks are part of the GMT400 platform and represent a transition toward more modern styling and improved ride quality while retaining classic truck durability.
OBS Chevy trucks were available in a wide range of configurations, including half-ton, three-quarter-ton, and one-ton models, with both two-wheel drive and 4×4 options. Engine choices included several gasoline V6 and V8 options, as well as the 6.5L Detroit diesel, offering flexibility for both daily driving and work applications.
Today, OBS Chevy trucks are widely appreciated for their balance of simplicity, reliability, and usability. Many are restored or modified with suspension upgrades, modern drivetrains, and cosmetic enhancements, while clean, original examples are becoming increasingly difficult to find.
Buyer Tips
Check for rust in cab corners, rocker panels, and frame
Inspect transmission performance and shifting
Evaluate engine condition and maintenance history
Inspect front-end components and steering wear
Check suspension setup, especially on lifted trucks
Review interior condition and dashboard wear
Evaluate modifications and overall build quality
Frequently Asked Questions
OBS Chevy trucks were produced from 1988 through 1998 as part of the GMT400 generation. The term “OBS” refers to “Old Body Style,” used to distinguish these trucks from newer designs. They remain one of the most popular classic GM truck platforms.
OBS stands for “Old Body Style,” a nickname used by enthusiasts to describe pre-1999 Chevrolet and GMC trucks. It is not an official GM designation but is widely used in the truck community. The term helps differentiate these trucks from newer Silverado generations.
Engine options included the 4.3L V6, 5.0L and 5.7L V8 gasoline engines, and the 6.5L turbo diesel. Gasoline V8 models are the most common, while diesel models are less common and often sought after. Engine choice plays a significant role in value and usability.
Yes, OBS Chevy trucks are generally considered reliable when properly maintained. Their relatively simple mechanical design makes them easier to service compared to newer trucks. Condition and maintenance history are key factors in long-term reliability.
Many owners use OBS Chevy trucks as daily drivers due to their comfort and straightforward operation. They offer a balance between classic truck feel and modern usability. Fuel economy and safety features are more limited compared to newer vehicles.
Buyers should inspect for rust, transmission condition, and front-end wear, as well as overall engine health. Maintenance records and previous modifications should be reviewed carefully. Clean, unmodified trucks typically command higher prices.
Yes, especially 4×4 models equipped with solid rear axles and strong aftermarket support. Many trucks are modified with lifts, larger tires, and upgraded suspension components. They are commonly used for trail driving and light overland builds.
Prices typically range from around $8,000 for higher-mileage trucks to $25,000–$45,000+ for clean or restored examples. Diesel models and well-built trucks may command higher prices. Values have increased as demand continues to grow.
“OBS” is an enthusiast nickname meaning “Old Body Style,” while GMT400 is the official GM platform designation for trucks produced from 1988 to 1998. Both terms refer to the same generation, but OBS is more commonly used by buyers and enthusiasts when searching for trucks.
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