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Nathan (SD) 
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Joined: 11 Sep 2009
Location: Day County SD
Points: 1242
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 Topic: Model D grader tires
Posted: 10 Dec 2014 at 2:06am |
What size rear tires were most common on a Model D grader?
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DiyDave
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 50616
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Posted: 10 Dec 2014 at 4:50am |
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8.50X 20, I think...
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DonBC
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Joined: 12 Sep 2009
Location: Courtenay, BC,
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Posted: 10 Dec 2014 at 6:04pm |
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I would say that the most common are 8.25-20" but some early models and most basic models did use 6.50-16" on the front and 7.50-20" on the back. They also used drop centre rims for the 6.50-16" and the 7.50-20" and flat base rims for the 7.50-20" and 8.25-20"
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Jack of all trades, master of none
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Nathan (SD)
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Joined: 11 Sep 2009
Location: Day County SD
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Posted: 10 Dec 2014 at 7:32pm |
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Thank You for the info.
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DiyDave
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Posted: 11 Dec 2014 at 3:55am |
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9.5 X 20 military non directional tires will also work, if they are worn down about 2/3. I bought a set from genesco, and you could fit a nickel between the 2 rears...
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truckerfarmer
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Joined: 26 Jan 2013
Location: Watertown, SD
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Posted: 11 Dec 2014 at 5:45am |
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Nathan, you might want to check with WW Tire in Watertown. Father-in-law bought 8 of those non-directional tires for his dump truck from them this fall. I think he said he gave $125 each unmounted. They are 8.50 x 20. They are new take offs.
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Looking at the past to see the future.
'53 WD, '53 WD45, WD snap coupler field cultivator, #53 plow,'53 HD5B dozer
Duct tape.... Can't fix stupidity. But will muffle the sound of it!
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DonBC
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Location: Courtenay, BC,
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Posted: 11 Dec 2014 at 12:01pm |
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I bought new "off shore" made cheap truck tires for my grader. Quality was not important as they would not be carrying any heavy loads at speed. They had three tread designs to choose from and being a little smaller in outside diameter than true grader tires or old military tires it left more room between the tandems for at least one set of chains. The military tread is almost useless in snow.
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Jack of all trades, master of none
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Ages Cat
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Joined: 12 Sep 2009
Location: Hutchinson, MN
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Posted: 15 Dec 2014 at 6:09pm |
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I called WW Tire today and no luck with the tires.
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Curt Anderson
HD3, HD5B, HD6E, HD6AG,HD6B dozer, I-400, 615, 616,(2) 620, 720, ACP25 lift truck, 1956 D Special Grader, AC 540 loader, AC 655 crawler loader, AC #84 plow, Simplicity lawn tractors.
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