Mike,
I just replaced the 7.5 x 17 tires on my 59 1 ton with P235-85-R16's mounted
on Z-Racing 16x7 Rims (Same as American Racing Outlaw II Rims - you'll see
they have the best backspace tradeoff to the old rims.). Everything fit
except the Front rim needed a 1/4 inch thick spacer between the drum and the
rim. I used lug nuts that have a collar on them to get more threads to
engage so I didn't have to change the studs on the brake drums. (Lots of
help from National Tire and Battery with all of this). J.C. Whitney
actually sells a 1/4 inch thick spacer for the 8 Lug x 6.5 inch circle
pattern, but I made mine from 1/4 inch thick aluminum plate. The 85 in the
tire size is the % of sidewall height to tread width and you are running a
75 series tire and therefore a shorter sidewall. With the taller sidewall
height, my side bulge is moved farther away from the rim and doesn't touch
any of the steering assembly. The 1/4 inch thick spacer also helps the
clearance issue as well. I must say I am shocked though that you are
having any problems, I had a ford steel 16x6 rim and test mounted the P235
85 R16 tire and saw room to spare on my 1 ton. I thought the 1 ton and 3/4
ton shared the same front suspension, just a different rear axle.
I'm posting this reply to the list as well since there had been a lot of
discussion on tire and rim swaps. This might jog some more comments to come
to your aide.
Dick
59 Apache 1-ton.
-----Original Message-----
From: mmccormick <mmccormick@saw.net>
To: oletrucks@autox.team.net <oletrucks@autox.team.net>
Date: Monday, September 20, 1999 7:33 PM
Subject: [oletrucks] Tire help needed
>Hey guys,
>I have a '59 3600 with 17.5" wheels. I want to replace them with 16' so
>I can go to cheaper radials. I took the advice that was offered in the
>past on the list, measuring backspace, and found that Ford 16'X 6'
>wheels worked (with tape weights). However.. the tires we put on rub
>(not the wheels, they weren't even close to a problem). We put on
>p225-75-16. The tire place (Hi-Way fuel in Washougal WA) doesn't think
>215s will fit either. What did I do wrong?
>What do I do now?
>
>Thanks for the help.
>
>Mark McCormick
>'59 3600
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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