Famous Trucks: The Clampetts’ 1921 Olds Model 46 from The Beverly Hillbillies

Some movie trucks get famous for what they can do. This one got famous for barely running.

For nine seasons, a battered, cut-down Oldsmobile hauled the Clampett family around Beverly Hills with Granny strapped into a rocking chair in the back. It appeared in the opening titles of all 274 episodes and became one of the most recognizable vehicles in American television.​

Welcome back to Famous Trucks, where we dig into screen-used rigs and how you’d replicate one—this month, the Swamp Rat.

The Beverly Hillbillies premiered on CBS on September 26, 1962, and the whole premise fits in one sentence—an Ozark family shoots at some game, misses, strikes oil, pockets $25 million, and moves to Beverly Hills.​

Paul Henning created it, drawing on his Missouri childhood and time in the Ozarks. Buddy Ebsen played Jed Clampett, the patient patriarch. Irene Ryan played Granny Daisy Moses, the ornery one. Donna Douglas was Elly May, and Max Baer Jr. was Jethro Bodine, whose sixth-grade education was one of the show’s running jokes. Raymond Bailey and Nancy Kulp played banker Milburn Drysdale and his secretary Jane Hathaway.​

Critics hated it—audiences loved it. The show was the number-one program in America for its first two seasons and stayed in the top 20 for eight of nine, and 16 of its episodes remain among the 100 most-watched television episodes in U.S. history. Flatt and Scruggs’ “The Ballad of Jed Clampett” went to number one on the country chart. The show’s success led CBS to greenlight Petticoat Junction and Green Acres.​

The end came abruptly. In 1971, CBS canceled every rural-themed show on its schedule simultaneously, chasing younger urban advertisers. The Beverly Hillbillies, Green Acres, Mayberry R.F.D., and Hee Haw all went down together in what’s remembered as the Rural Purge. The final episode aired March 23, 1971, with the show still drawing respectable numbers.

The Clampett truck—nicknamed the Swamp Rat—started life as a 1921 Oldsmobile Model 46 Roadster, part of Oldsmobile’s Light Eight line. In 1921, that was a reasonably upscale car, with a 246-cubic-inch V8 at a time when V8s were rare, and it started around $1,735.​

By the time it reached the show, it was none of those things. The widely told account credits Hollywood customizer George Barris, who reportedly found the car behind a feed store in Fontana, California, already weathered into exactly the right condition—decades of neglect had done most of the work. The rear bodywork was cut away and replaced with a flatbed, giving the car a truck’s back half and a touring car’s front.​

Five trucks were built across the run, used for different purposes—hero car, stunt work, exhibition. Fans who watch closely can spot continuity breaks between them, with small variations in trim and body damage from episode to episode.​

What made it work on screen was the loading. The flatbed carried a wooden rail and a bench, and the family rode in the back surrounded by trunks, crates, and the rocking chair where Granny sat for the opening credits of every episode. That image—an ancient truck piled with belongings, rolling past Beverly Hills mansions—summed up the show’s entire premise in three seconds without a word of dialogue.

​Fair warning on this one. Most tribute builds in this series involve finding a common platform and bolting on parts. This one involves finding a 105-year-old car and then cutting it in half.​

No catalog exists for this build—no lift kit, no bumper, no bolt-on anything. What you’ll need is a donor vehicle, a fabricator comfortable with wood and early-twenties sheet metal, and the patience to source parts through antique car clubs rather than websites. That said, the finished product is one of the most recognizable vehicles you could pull up to a show in, and almost nobody has one.

The screen truck was a 1921 Model 46, but the Model 46 ran in 1921 and 1922 with only minor changes, and the broader Light Eight family spans roughly 1919 through 1922. Any of those should get you close on proportions and the all-important radiator shape.​

Realistically, you’ll take whatever surfaces. These cars are a century old, were never produced in large numbers, and most survivors are either fully restored or beyond saving. If an exact Model 46 never materializes, a contemporary roadster from another manufacturer with a similar radiator profile and wheelbase gets you most of the way there—and since the Swamp Rat was never factory-correct, period accuracy to the specific model matters less here than it would on most other builds.

Here’s where this project inverts normal restoration logic. You are not trying to make this car look good—quite the opposite.​

The screen truck wore mismatched panels, surface rust, dents nobody bothered to pull, and paint that had given up decades earlier. Getting that look right means resisting every restoration instinct you have. Leave the patina. Leave the dents. If you’re starting with a cleaner car, you’ll need to add wear rather than repair it, which is its own skill.​

The accessories are what sell it. The Clampett truck was perpetually loaded—rope-lashed trunks, crates, a water barrel, tools, and assorted gear. Study screen grabs and reruns to replicate the clutter. It’s doing as much work as the vehicle underneath.

The flatbed is the defining modification and the part you’ll fabricate from scratch.​

The rear body was removed and replaced with a wooden deck, bounded by a low rail, with a bench seat mounted behind the cab so the family could ride in the back. The wood was unfinished and weathered, not stained or sealed. Build it from rough-sawn lumber and let it sit outside for a season rather than trying to simulate aging.​

Mounting the deck to a frame that was engineered for a passenger body is the real engineering problem. Find a fabricator experienced with early chassis work before you cut anything.

Q: What Is the Beverly Hillbillies Truck?

A: A cut-down 1921 Oldsmobile Model 46 Roadster, modified with a wooden flatbed and a rear bench seat. Fans and the production nicknamed it the Swamp Rat.​

Q: Where Is the Beverly Hillbillies Truck Now?

A: The original is displayed at the Ralph Foster Museum on the College of the Ozarks campus in Point Lookout, Missouri, near Branson. Series creator Paul Henning donated it in 1976 as a Bicentennial gift, and visitors have been photographing themselves in the front seat ever since. At least one other example has appeared on the collector market in recent years.​

Q: How Many Beverly Hillbillies Trucks Were Built?

A: Five, used for different purposes across the series. Variations between them show up as minor continuity breaks if you watch closely.​

Q: Was It Really a Model 46?

A: Sources disagree. The Ralph Foster Museum identifies its vehicle as a 1921 Model 46 Roadster, and Wikipedia and auction listings follow that. Other accounts describe it as a Model 43-A, which was a four-cylinder car on a shorter wheelbase. With five trucks built from whatever donors were available, it’s plausible that more than one Oldsmobile model is represented across the set.​

Q: Who Built the Beverly Hillbillies Truck?

A: George Barris of Barris Kustom Industries is credited, having reportedly found the car behind a feed store in Fontana, California. Barris also built the original Batmobile and the Munster Koach. Some automotive historians have questioned the extent of his involvement, since the car arrived in largely the condition the show needed.​

Q: What Engine Did It Have?

A: The Model 46 came from the factory with a 246-cubic-inch V8, which was unusual for 1921—Oldsmobile was among the first manufacturers offering a V8 in a mainstream car.​

Q: Why Is It Called the Swamp Rat?

A: It’s the nickname that is attached to the truck, fitting its condition and the Clampetts’ backwoods origins.​

Q: Did the Truck Appear in the 1993 Movie?

A: Yes. At least one of the original Barris-built trucks was used in the 1993 feature film adaptation as well as the series.​

Q: Is the Beverly Hillbillies Truck Street Legal?

A: The museum example is a static display and hasn’t been road-registered in decades. Any tribute you build would need to meet your state’s requirements for an antique or custom vehicle, which vary considerably.

The Swamp Rat proves a truck doesn’t need horsepower or a lift kit to become an icon—sometimes it just needs to show up in 274 episodes with a rocking chair in the bed.​

For more screen-used rigs and the stories behind them, check out the rest of our Famous Rides features on RealSource™. Browse iconic TV and film builds, like the Pizza Planet truck from Toy Story, Bella Swan’s truck from Twilight, and Brian O’Conner’s Ford F-150 Lightning from The Fast and the Furious.​

And whatever you’re building, RealTruck® has the parts and the know-how. Don’t hesitate to contact the experts for help with your build.