Ford Model TT

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1925 Model TT Truck
1926 Model TT Tank Truck
Ford TT used as a bus in Skanör, Sweden in 1920
Blue Bird school bus built on a 1927 Ford Model TT chassis

The Ford Model TT is a truck made by Ford. It was based on the Ford Model T, but with a heavier frame and rear axle, giving it a rating of 1 short ton (0.91 t).


When first produced in 1917, the Model TT was sold as a chassis with the buyer supplying a body. The price was $600. Starting in 1924, the truck was available with a factory-produced body. By 1926 the price had dropped to $325.[1] In 1925, a hand-operated windshield wiper was added.[2]

Below are the numbers of Model T trucks produced each year, not including Canadian production.[3]

Year Production
1917 3
1918 41,105
1919 70,816
1920 53,787
1921 64,796
1922 154,039
1923 246,817
1924 259,118
1925 306,434
1926 213,914
1927 74,335


1926 Ford Model TT truck engine at Campbell County Rockpile Museum in Gillette, Wyoming

The rear axle of the TT had a worm drive[4] and crown wheel, unlike the Model T's crown wheel and pinion. The worm was located at the end of the drive shaft and above the crown wheel. The wheelbase of the Model TT was 125 inches (3,175 mm), compared to 100 inches (2,540 mm) for the Model T. It was often equipped with an accessory gearbox, such as the Ruckstell or Jumbo gearboxes, which allowed the truck to have intermediate gears between low and high, useful for hill climbing.

The Model TT was very durable for the time, but slow when compared to other trucks.[5] With standard gearing, a speed of not more than 15 mph (24 km/h) was recommended, and with special gearing, a speed of not more than 22 mph (35 km/h) was recommended.[6] Standard worm gear ratio was 7.25:1, and special gearing gave a ratio of 5.17:1. Because of this, accessory catalogs offered items to help give the Model TT more power.[7]

It was replaced by the Ford Model AA truck in 1928.[8]


  1. ^ Gunnell 2003, p. 6.
  2. ^ Gunnell 2003, p. 37.
  3. ^ "Ford Production". Model T Ford Club of America. Retrieved 2015-03-25.
  4. ^ Gunnell 2003, p. 6.
  5. ^ "1924 Ford Model T Truck". Texas Transportation Museum. Retrieved 2015-03-25.
  6. ^ "1923 Ford Dealers Data Book". Model T Ford Club of America. Retrieved 2015-03-25.
  7. ^ Brooke, Lindsay (2008). Ford Model T: the Car that Put the World on Wheels. Motorbooks. ISBN 978-0-7603-2728-9.
  8. ^ Gunnell 2003, p. 40–41.


Gunnell, John A. (2003). Standard Catalog of American Light-Duty Trucks. Iola, Wisconsin: Krause Publications. ISBN 0-87341-238-9.

External links[edit]

Ford Model TT brochure from 1923