Resto-Mod 1954 GMC 100: A Journey of Passion and Craftsmanship

Bill Bethauser’s Resto-Mod 1954 GMC 100

In the heart of West Melbourne, Florida, resides a piece of automotive history meticulously restored and customized by Bill Bethauser. A journey that began with nostalgic memories of a family farm’s 1952 GMC 100 has been restored and modified into a stunning 1954 GMC 100—a true testament to craftsmanship and dedication.

Bill’s quest for the perfect truck led him through twists and turns, fueled by late-night conversations and wrench-turning with friends like Gavin and Matt. Their legendary “Tampa” adventures, often veering off-course, eventually led them to discover the truck that would become Bill’s latest passion project.

Over a decade in the making, this restoration project was not without its challenges. Life’s demands delayed progress, but determination persevered. The truck underwent a comprehensive transformation, starting with the installation of suspension components, but ended up with a full strip-down at Modern Classics.

Every detail of the truck received attention. From the frame, powdercoated by Precision Powder Coating in Melbourne, Florida , to the interior masterfully crafted by Robbie Collins at Hank’s Upholstery, no aspect was overlooked.

This truck isn’t just a showpiece—it’s a member of the family while attending events like SEMA, Slamfest, and BloodDrag.

Underneath the vintage patina exterior lies a modern powerhouse—a 2003 Chevrolet 5.3 LS engine, balanced and blueprinted by Modern Classics. With upgrades including GM fuel injectors, Block Hugger headers, and a custom exhaust system from Modern Classics, this truck packs both style and performance.

The drivetrain boasts a GM Performance 4L60E transmission with custom modifications, paired with a rear axle from a 2003 Oldsmobile Bravada. Wilwood disc brakes provide the stopping power, while Firestone airbags and Jimenez Bros suspension components offer a slammed smooth ride.

For Bill Bethauser, the journey from reminiscing about his family’s farm truck to creating his own custom masterpiece has been a lengthy and stressful process. It all pays off though as he cruises the streets of West Melbourne in this killer 1954 GMC 100.

Inside, the weathered brown leather bench seat from Hank’s Upholstery exudes comfort and style, complemented by a Colorado Customs steering wheel. The attention to detail extends to every corner, from the custom-built kick panels by Demetri Matheos to the personalized touches added by David Vehlie and Gavin.

This truck isn’t just a showpiece—it’s a member of the family while attending events like SEMA, Slamfest, and BloodDrag. It’s a tribute to the memories of days gone by and the result of a bond between man and machine.

For Bill Bethauser, the journey from reminiscing about his family’s farm truck to creating his own custom masterpiece has been a lengthy and stressful process. It all pays off though as he cruises the streets of West Melbourne in this killer 1954 GMC 100. He carries with him not just a truck, but a legacy of passion, perseverance, and the enduring power of dream.

TRUCK SPECS

Owner 

Bill Bethauser
West Melbourne, FL
1954 GMC 100
Negative Camber

Paint & Body

• LED conversion headlights
• Stock bumpers
•  Custom Hagan fuel filler in bed, shaved antenna, shaved cab vents, custom splash apron
•  Vintage patina peeeeeyuk yellow paint
• Paint and graphics completed by Josh Huff at Huff N Paint in West Melbourne,FL

Engine & Drivetrain 2003 Chevrolet 5.3 LS

• LS engine mounts and transmission crossmember
• Engine buildup/modifications done by Modern Classics In West Melbourne, FL
• The engine has been balanced and blueprinted
• GM Pistons
•  Wedding engine rings
• GM LS1 intake manifold
• GM fuel injectors
• Block Hugger headers
• Mandrel-bent 2.5-inch exhaust with Flowmaster mufflers from Modern Classics
• GM Delco coil packs from Holley Performance
• Fram oil filter, custom air filter dyed to match the engine bay

2003 GM Performance 4L60E transmission

• Upgraded clutch and solenoids
• TCI shift kit
• Lokar shifter
• Yank torque converter with a 4100 stall speed
• B&M transmission cooler
• Billet Corvette servo,billet sun shell
• Transmission work byBurgess Automotive

Chassis & Suspension

• Original 1954 GMC chassis that has been fully boxed
• Chassis modifications by Modern Classics
• Powdercoating by Space Coast powdercoating
• Firestone airbags front and rear
• Jimenez Bros custom front independent suspension kit, rack and pinion
• Rear 2-link suspension kit
• All frame modifications by Explicit Customs and Modern Classics.
• Two Viair 485C compressors
• Accuair e-Level air management
• Stainless lines that are matched to the color scheme
• 2003 Oldsmobile Bravada rear axle
• 373 gear ratio, a straight locker and a limited slip posi setup.

Wheels, Tires & Brakes 

• American Racing 20-inch Rodstars
• Wilwood front and rear dual piston disc brakes

Interior 

• Weathered brown leather bench seat
• Colorado Customs steering wheel out of Dave Hearndon’s custom yellow suburban
• Interior by Robbie Collins at Hank’s Upholstery in Melbourne, FL

Photo Credit: DAMIEN DAVIS