What Year is Actually an OBS Chevy Pickup Truck?

OBS Chevy Feature

The term “OBS Chevy” might sound like a mysterious code to the uninitiated, but to truck enthusiasts, it’s a name that evokes nostalgia, admiration, and a touch of confusion. OBS stands for “Old Body Style” and refers to the generation of Chevrolet/GMC pickup trucks built from 1988 through 1998.

Some say the acronym stands for “original body style,” but regardless of the interpretation, it points to the same iconic trucks. Chevrolet replaced the “Rounded Line” pickup, often dubbed the square-body Chevy, with its new C/K truck in 1988.

This generation, also known as the OBS Chevy, ran until 1998. These trucks were the first aerodynamically influenced ones on the market, marking a significant departure from their predecessors. The automaker’s internal code for this generation was the GMT 400, but fans lovingly adopted the slang term “OBS Chevy.”

The Essence of OBS Chevy

The term “OBS Chevy” predominantly points to the Chevrolet/GMC pickup trucks manufactured between 1988 and 1998. While some, including myself, have always associated the acronym with “old body style,” others argue it stands for “original body style.”

The debate might be influenced by regional preferences, but the essence remains unchanged. Interestingly, while Dodge and Ford enthusiasts might use “OBS” to denote various older truck generations, GM loyalists almost unanimously associate the term with the first series that bore the Sierra nameplate from 1988 to 1999.

Chronology of the OBS Chevy

OBS Chevy InsideThe journey of the OBS Chevy began in 1988 when Chevrolet decided to replace its “Rounded Line” pickup, colloquially known as the square-body Chevy. This new generation, baptized as the OBS Chevy, continued its legacy until 1998.

These trucks were pioneers in aerodynamic design, a stark contrast to their predecessors. Internally, General Motors labeled this generation as the GMT 400, but fans embraced the more colloquial “OBS Chevy.”

As truck designs evolve, the term “old body style” might become ambiguous. Who’s to say that a few decades down the line, a 2024 Chevrolet Silverado won’t be christened as a Chevy?

But as of now, the GMT400 holds the title.

Engine and Reliability

OBS Chevy EnginePotential buyers had a plethora of engine options for the OBS Chevy pickup. The base model was equipped with a 4.3-liter V6, but for those seeking more power, gas V8 options ranged from 5.0-liter to a whopping 7.4-liters.

Additionally, General Motors also provided both naturally-aspirated and turbocharged diesel V8 options. In terms of reliability, the OBS Chevy was a game-changer.

It was the first in the GM truck lineage to incorporate modern technologies like fuel injection and independent suspension across all models, including the 4x4s. This made them a favorite among those accustomed to modern vehicles.

However, like all vintage vehicles, they come with their set of challenges. Common issues include fading paint, interior plastic quality, and susceptibility to rust in specific climates.

Why the Surge in Popularity?

OBS Chevy SideFast forward a few decades, and these trucks are making a massive comeback. The OBS Chevy trucks are fueling a nostalgia movement, with their popularity skyrocketing in the used truck market.

Several years ago, it was possible to snag on the cheap. However, with the surge in interest, especially from sport truck enthusiasts, prices for these project trucks have nearly doubled.

The reasons for this resurgence are manifold. For many, it’s a trip down memory lane, reminiscent of the sport truck scene of the 1990s.

For others, it’s the allure of the truck’s design, practicality, and ease of building or rebuilding. The trucks are also known for their reliability, comfort, and suitability as daily drivers.

Custom and replacement parts are affordable, and the trucks’ trim, mostly held together with adhesive, is easy to remove.


 With independent front suspension and fuel injection, these trucks offer modern driving characteristics while retaining their vintage charm. They’re not just old trucks; they’re a testament to a time when design and functionality went hand in hand.

And while they might be called “old body style,” there’s nothing outdated about their appeal. Chevy trucks are more than just vehicles; they’re a symbol of an era, a testament to Chevrolet’s commitment to innovation, and a beloved icon in the automotive world.

Whether you’re an old-timer reminiscing about the good old days or a young enthusiast looking to dive into the world of classic trucks, the OBS Chevy is a treasure trove of history, design, and pure driving pleasure. So, the next time you spot an OBS Chevy on the road, tip your hat to a legend.

And if you’re lucky enough to own one, know that you’re driving a piece of automotive history. After all, as any car enthusiast will tell you, they don’t make ’em like they used to! 


1. What year is OBS Silverado?

The term “OBS” or “Old Body Style” typically refers to Chevrolet/GMC pickup trucks built from 1988 through 1998. Therefore, the OBS Silverado would fall within these years. This is how it stacks up against Ford’s counterpart vehicle in terms of comparison.

2. What does the OBS Chevy truck mean?

“OBS” stands for “Old Body Style.” It’s a term used by truck enthusiasts to describe the generation of Chevrolet/GMC pickup trucks produced from 1988 to 1998.

3. Is a 98 Chevy an OBS?

Yes, a 1998 Chevy pickup is considered an OBS or “Old Body Style” truck.

4. What are 90s Chevy trucks called?

90s Chevy trucks, specifically those from 1988 to 1998, are commonly referred to as “OBS” or “Old Body Style” trucks. They might also be recognized by their specific model names like Silverado, C/K, or Sierra.

5. How much is it worth?

The value of an OBS Chevy can vary widely based on factors like condition, mileage, modifications, and demand in the market. In recent years, their popularity has surged, leading to higher prices, especially for well-maintained models. It’s best to consult a vehicle valuation guide or local listings for the most accurate pricing in your area.

6. What engine is in an OBS Chevy?

OBS Chevy trucks came with a variety of engine options. The base model typically had a 4.3-liter V6. Gas V8 options ranged from 5.0 liters to 7.4 liters. Additionally, General Motors offered both naturally-aspirated and turbocharged diesel V8 options for these trucks.

7. Why are these trucks so popular?

OBS trucks have gained popularity for several reasons. They represent a blend of modern driving characteristics with classic, vintage aesthetics. Their design is both functional and appealing, and they are known for their reliability. Additionally, the nostalgia associated with these trucks, combined with their relative affordability and availability of parts, has contributed to their resurgence in popularity among truck enthusiasts.

Final Words

The OBS Chevy is not just a truck; it’s a testament to Chevrolet’s innovation and the love of its fans. Whether you’re a truck enthusiast or just someone curious about automotive history, the OBS Chevy’s legacy is undeniably fascinating.

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