1970 GTO wheel/Tire fitment - Pontiac GTO Forum
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post #1 of 2 (permalink) Old 02-23-2019, 03:02 PM Thread Starter
 
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1970 GTO wheel/Tire fitment

new to forum,, i have a 1970 GTO worked 400, eibach lowering springs,, just purchased Year One staggered 17"-- 8/9 wheel set.
YO recommends 245/45/17 fronts and 275/40/17 rear.
was thinking 235/50/17 fronts and 275/50/17 rears. ( want a little more rubber underneath) either Nitto 555 or Firehawk Indy 500
Will this combo work?? don't want rubbing issues later on.
thanks

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post #2 of 2 (permalink) Old 02-23-2019, 10:46 PM
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Here are the specs on all 4 tire sizes,

245/45/17 = 9.65" sectional width, 4.35" sidewall height and a total tire height of 25.68"

235/50/17 = 9.25" sectional width, 4.62" sidewall height and a total tire height of 26.25"

275/40/17 = 10.82" sectional width, 4.33" sidewall height and a total tire height of 25.66"

275/50/17 = 10.82" sectional width, 5.41" sidewall height and a total tire height of 27.82"

I think your tire sizes would look better, I would be concerned that the 235/50/17 may rub on the front fenders, maybe a 235/45/17 would be a better fit, 235/45/17 specs are 9.25" sectional width, 4.15" sidewall height and a total tire height of 25.32"

Randy


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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Wheels & Tires

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