SEMA 2007:
Toyota Tundra Dually Diesel CrewMax Project

Photos and Words By: Mike Levine
Posted: 10-29-07 15:30 PT

© 2007

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Update 1: 11-02-2007
The question of whether it's an Allison or Eaton transmission has been answered. Some self-research and an update from a Toyota source confirms it's an Eaton and not the Allison, which we were verbally told the first day the Tundra Diesel Project was shown.

It's big - inside and out. Toyota's Tundra Dually Diesel CrewMax has arrived at SEMA with an 8.0-liter I6 Hino oil burner under its hood.

The press kit for the Tundra Dually Diesel will be published tomorrow, but preliminary info on the Hino motor is that it's rated in the neighborhood of 300-horsepower and 600 lb-ft of torque. Gears are swapped using an Eaton 5-speed manual transmission.

There had been some rumor this truck might debut with a Caterpillar diesel, but Toyota made the decision to stay within the family. Hino is a member of the Toyota Group of companies.

Brian Smith, Toyota's corporate marketing manager, says, "The Tundra Dually Diesel is a concept in true SEMA tradition. It’s meant to show off the wilder side of our trucks."

And showing off that wilder side means this Tundra has driven past the heavy duty segment. It also uses Hino rear running gear and brakes, swiped off Hino’s medium duty chassis trucks.

Toyota may or may not have secret plans to enter the heavy duty segment in the next few years, but if it does we're betting that future Tundra HD won't be setup anywhere like this one-of-a-kind hauler.

Inside is a custom leather interior and the biggest stick shift this side of a semi. If that tall stick isn't enough to prompt the driver they're in something beyond Class 3, the instrument panel also helps. The tach goes red at only 2,600 rpm. There's also Tekonsha electronic brake controllers integrated in the dash.

Outside, the custom tow mirrors and front bumper are brushed steel and the skin has been painted with a matte gray finish. It rides on 22-inch wheels. Open the doors and running boards automatically deploy from under the cab.

The bed houses a 24K-pound fifth wheel hitch and preliminary information suggests that this truck is rated to tow that same amount. We'll confirm tomorrow after Toyota gives the official word.

The Tundra Dually Diesel was custom built for SEMA by Toyota Motorsports Garage in Torrance, California.

Read on for more information about Toyota's team responsible for bringing this truck to SEMA - the changes they made and the challenges they faced.

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