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275/60 rear 255/60 front

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G3GM :: G3 Tech :: Wheel / Tire fitments

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275/60 rear 255/60 front Empty 275/60 rear 255/60 front

Post by 1975 S3 Wed Jun 10, 2020 11:10 pm

On 7 inch rims...Any trim ring fit issues on the rears?

Thanks, Dave
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Post by Dinomyte Sun Jun 21, 2020 11:05 am

Hi Dave :

275/60 is to wide for a 7" rim. (the sidewall will bulge too much)
255/60 is fine, but just barely.

Not sure what you're asking about trim rings.
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Post by Limey SE Sun Jun 21, 2020 9:16 pm

The Sidewall Bulge on a 7" rally might barely interfere with the them tire sizes using a trim ring Esp with a 275/60 .....255 will be close

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Post by bucket Sat Jan 09, 2021 10:05 pm

1975 S3 wrote:On 7 inch rims...Any trim ring fit issues on the rears?

Thanks, Dave

Did you ever mount up those tire sizes? I've got the same combo to mount up and think it will look good.

Dinomyte wrote:Hi Dave :

275/60 is to wide for a 7" rim.  (the sidewall will bulge too much)
255/60 is fine, but just barely.

Not sure what you're asking about trim rings.

Technically speaking, yes it's "too wide". But even GM ran a 275/60/15 tire on a 7" rim, on the early 90's 454 SS trucks. It works fine.

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Post by 1975 S3 Fri Jan 22, 2021 5:18 pm

Haven't purchased the tires yet, most likely radial T/A's but those Coopers looked really good on that Monte also. My tire guy also says he's mounted many 275/60's on 7 in rims.
Other options I'm exploring are 255's square on the 7 inch wheels, or purchasing a set of 8 in knock off ralleye's from summit ( I have a 7 inch one for my spare and was impressed by the quality and look).
Tires and wheels would blow the budget this year though.
Lots of conflicting advice (all appreciated) on this but I'm inclined to try the 275's on the 7 inch and if it doesn't work grab 2 more 255's and save the 275's for next year when the budget allows for some 8 or 10 inch wheels.

Dave
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Post by Limey SE Sat Jan 23, 2021 12:00 am

You can get the Summit Branded Rally wheels for like 55 to 60 each ??

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Post by bracketchev1221 Sat Jan 23, 2021 10:26 am

I have the wheel vintique rally’s on my 80. I use a 15x8 on the rear with a 255/60 tire and 15x6 on the front. If it was me I would use an 8 with a 275/60. It keeps the tread flatter on the ground instead of pulling the edges up.
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Post by bucket Sun Jan 24, 2021 8:41 pm

It's not the right vehicle at all, but you can see exactly how the 275/60 radial TA fits on a 7" rim. It's the front tire, not the rear.
275/60 rear 255/60 front 20200811

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