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1955 Chevy Bel Air Project - Shoebox Structure

We Follow The Build Of A Fatman Fabrications Tri-Five Chassis For Installation In Our '55 Project.

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When the Tri-Five chassis debuted in the fall of 1954, it was a revolutionary design that offered the best handling and riding suspension available at the time, at a much lighter weight than previous Chevrolet car chassis. Flash forward almost 60 years. While some of the same basic designs are still used today, the whole chassis itself has become outdated in the handling department. While there are bolt-on components available that will drastically improve the handling qualities of a '55-57 Chevy, you still have the issue of dealing with an almost 60-year-old steel structure that has seen a lot of stress and abuse from driving, racing, and (in some cases) years of sitting.

Addressing this issue, aftermarket companies like Fatman Fabrications have come out with all-new chassis for the Tri-Fives. Not only do these assemblies feature modern steel construction, but also cutting-edge design with the latest technical innovations in suspension, steering, and braking components.

The eventual goal for our Project '55 is to have a car capable of quarter-mile, autocross, and comfortable street driving. The original frame on our '55 had been hacked on a bit, and while still usable, didn't offer the level of adjustability and function to handle all the things we have in mind for the car. We contacted Brent Vandervort, the founder of Fatman Fabrications, about what to do.

Vandervort started Fatman Fabrications in 1985 to build new chassis for street rods. Having built numerous cars for friends on the side, he knew what was needed when it came to an up-to-date chassis for classic cars. As his business grew, so did the product line, eventually including full bolt-in chassis for later-model vehicles like our '55. Now Fatman employs over 40 people at its shop just outside Charlotte, North Carolina, building some of the finest and strongest aftermarket chassis available.

Follow along as we see what goes into building a typical Fatman Tri-Five chassis, and explain all the advantages it has over a stock/modified stock frame.

QA1 Motorsports
21730 Hanover Avenue
MN  55044
350 S. St. Charles Street
IN  47546
Wilwood Engineering
4700 Calle Bolero
CA  93012
Moser Engineering
102 Performance Drive
IN  47371
Fatman Fabrications
8621-C Fairview Road, Highway 218
NC  28227
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