What model and year?

[Tom Mullet]

[keiser31]

Ford Model TT. Not sure of the year.

[41 Su8]

Prior to 1924. TT's were made in 1917, but only a few chassis were.  1924's would have had a slanted windshield and large radiator and apron.

[Layden B]

With solid rear tires it would be early Model TT truck, 1918-1920.

[Brass is Best]

That is a 1919 Ohio License Plate on the truck.

[wayne sheldon]

That is a nice early TT. Ford was developing the TT during 1917. If I recall correctly, five prototypes were built, none of which survive. While a few TT truck chassis were manufactured during calendar 1917, they were all very late in the calendar year, and considered 1918 models just as were the cars manufactured then.

The detail in that photo isn't very sharp. However, it looks as though it may have the above axle wishbone. That would make it a very early TT. The above axle wishbone had been a bit of a problem for several years, and Henry in his stubbornness had refused to make a significant change to it in spite of the fact that thousands of after-market braces had been manufactured and sold to make the front end more stable. However, when the TT truck began being manufactured, the problem of front end stability became more serious. Henry wanted the truck and car front pieces to be interchangeable, including the wishbone. This because it was more economical to handle production that way. The weakness of the wishbone on the trucks was serious enough that the TT got the new under-axle design months ahead of the cars. The over-axle design parts already in the supply lines continued to be used up on the cars for a few months. 

This truck (if it is in fact an over-axle wishbone?) would likely be a 1918 model. By the time the 1919 model TTs were being produced, the better design was being used on them. Some early 1919 cars still got the over-axle wishbone.

Edited February 6, 2021 by wayne sheldon
I hate leaving typos! (see edit history)