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R. G. LeTourneau's Overland Trains

a complete history

R. G. LeTourneau's Overland Trains
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Firestone 120x48x68 Tires

  • July 26, 2021
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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.

April 15, 1954 – Ft. Eustis, VA. Three visitors marvel at the new Firestone tires.
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OverlandTrains.com is a companion to R. G. LeTourneau’s Overland Trains: a complete history. Now available on Amazon.com at https://www.amazon.com/dp/B0BFL91FX6

Recent Articles
  • Sno-Buggy Testing in Greenland with Aircraft Overhead February 6, 2023
  • How Did the TC-497 Overland Train Steer? February 4, 2023
  • YouTuber Calum Visits the TC-497 in Yuma Proving Ground January 26, 2023
  • R. G. LeTourneau’s Last Remaining Tournalaid Homes Face Demolition January 23, 2023
  • Overland Train TC-497 and Buggy Fan Art January 20, 2023
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