The Firestone 120x48x68 tires are arguably, one of the most recognizable features on the last 3 LeTourneau Overland Trains. These tires were first produced in 1952. The numbers describe the tire dimensions as 120 inches tall – diameter (10 feet), 48 inches wide (4 feet), and 68 inches inner diameter. The were manufactured in thicknesses of 10-ply to 36-ply based on the machine it was used. If you wanted to buy a tire and rim combination during the 1960s, you would expect to shell out around $3,500 per tire and $1,600 per rim.
photo: D.Hardy, 2009 
Rim and tire combo weight, 2,322 pounds each.
Tire and rim combination weights will vary by rim model, rim metal composition, and tire plies. These tires were also used on the Crash Pusher, Water Wagon, Marsh Buggy, Sno/Swamp-Buggy, and possibly a few others that I have not seen.
Overland Trains 
Comments
3 responses to “Firestone 120x48x68 Tires”
[…] wondering what is the machine in this image. One of the more recognizable feature is the Firestone 120x48x68 tires. The tires above are 10 feet tall, with the machine standing well above the tire height. The […]
LikeLike
[…] at how the Sno-Train performed in the cold Arctic terrain. The Army was also testing how the huge Firestone 120x48x68 tires performed. During the Sno-Train’s time in Greenland, it was also tested with a variety of […]
LikeLike
[…] blowing stories and facts when the book comes out. This was the first Overland Train to use the Firestone 120x48x68 […]
LikeLike