‘50S STYLING, MODERN DAY WORK ETHIC
A DURAMAX AND ALLISON-SWAPPED 4100 SERIES CHEVROLET
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It was supposed to just be a work truck, but for Phil Prinster—a man that’s made his old Oliver tractor so nice it no longer handles his brush-hogging duties— functionality alone wouldn’t suffice for his ’50 Chevrolet 4100. Once a part of the St. Louis metropolitan district fleet, the truck also served as both a milk and grain hauler for a period before Phil acquired it from a friend roughly three decades ago. For years, he never could quite decide what he wanted to do with the 1.5-ton Chevy, but then he got an idea.
MODERNIZING A CLASSIC
Instead of doing a run-of-the-mill small-block build or dropping a big-block into the old truck, Phil decided a Duramax was the way to go. But rather than simply source an engine and transmission for the project, he picked up a wrecked ’06 Silverado 2500 and based everything on the HD’S modern era chassis, axles, and suspension. With help from his son Andy, son-in-law Josh, a host of local, small-town businesses, and the support of his wife of 41 years, Bonnie, Phil had the project wrapped up in a little over two years’ time. Local Body Work, One-of-a-kind Paint
Prior to sending the 4100 to his local auto body experts, Phil performed a bit of welding, filling holes on the exterior and along the firewall, as well as replacing both cab corners. From there, Outlaw Customz of Moscow Mills, Missouri took over. When it was time to paint the truck, it was sent over in pieces—first the MAR-K bed, followed by
the cab, and then the front clip. The folks at Outlaw came up with the one-off paint color, too, which can only be described as being close to resembling a black cherry with a healthy amount of metal flake.
LBZ AND SIX-SPEED ALLISON
Being that Phil wasn’t after making big horsepower with the project, the 200,000-mile LBZ Duramax and six
speed Allison were left untouched. As for the engine, it cleared the ’50 firewall by a mile but required the radiator be relocated. As for the Allison, raising the cab a couple extra inches above the frame helped Phil avoid any clearance issues. Nearby Linco Diesel Performance helped ease the Duramax/ Allison integration by installing a Standalone Solutions wiring harness, as well as a single EFI Live tow tune from PPEI to help wake up the LBZ. The factory ’06 transfer case, an NP261XHD, is still in the mix, too.
ALL HD UNDERNEATH
The frame, front and rear suspension, and receiver hitch from Phil’s ’06 Chevy donor were all salvageable and are currently in use. To accommodate the shorter body of the ’50, the frame had to be shortened, but neither the rear AAM 1150 and its leaf springs or the front AAM 9.25 IFS were affected. In fact, even the factory ’06 front skid plate is still employed. Retaining the bolt-in style OEM receiver hitch was mandatory, being that Phil uses the truck to haul steel for his business several times a month.