Bill:
I just measured the 235x75x15 tire on the right rear of my 57 GMC daily
driver. It is about 10.5" at the widest point on the sidewall, just
over 6" tread width and provides a 13.5" rolling radius (ground to
center of the axle). So I have no idea of what the 235 means, because
converted from millimeters (divided by your 25.4) it doesn't come close
to any of my measurements.
Oh, well.
-----Original Message-----
From: owner-oletrucks@autox.team.net
[mailto:owner-oletrucks@autox.team.net] On Behalf Of William Schickling
Sent: Friday, August 13, 2004 9:08 PM
To: Oletrucks
Subject: [oletrucks] Tire size
Is there any 41 - 46 trucks out there that could help me on some
measurements to help with figuring out what size rear tires I will be
able to run?
My truck is in pieces so I am doing some calculating here.
According to my measurements the width of the bed is 49 inches and the
outside width of the fenders is 72 inches. That leaves me with 23 inches
inside the fenders. Or around 10 inches of tire width.
Is there anyone out there that could check these on an assembled truck?
Also, when a tire is listed as 235 X Y. is 235 the total width of the
tire, or is it the width of the tread and then there is more tire
bulging out on the side wall?
235 divided by 25.4 = 9.25 inches
245 divided by 25.4 = 9.64 inches
255 divided by 25.4 = 10.03 inches
265 divided by 25.4 = 10.43 inches
Thanks for any help on this.
Bill Schickling
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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