Maximum rear tire size on '04 ??? - Pontiac GTO Forum
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post #1 of 13 (permalink) Old 03-15-2005, 02:30 PM Thread Starter
 
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Maximum rear tire size on '04 ???

I'm thinking of replacing the 245/45 x 17's on the rear (only) with 275/40's . It looks like it will work. Anyone heard or found out differently ?
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post #2 of 13 (permalink) Old 03-15-2005, 03:21 PM
 
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If you don't mind damaging your rear fenders. I had a 275 test fitted on mine at Discount Tire and it stuck out way past the fender. Without much suspension travel the tire would strike the fender. Not to mention that it did look a little funny on the factory wheels. It was questionable enough that they called the service manager to come look at it. He said that they might work, but was also quick to say that they wouldn't be responsible for any damage. At that I said "Take em off". Wound up with a discount on a set 245's with a better tread pattern because there computer listed the 275's as a fit. You might be able to get 255's on there(they were out so I didn't get to test any, that or they were tired of me experimenting on there time) but I doubt you would see much improvement. So, without some major alterations to the car, we are stuck with anorexic rubber.
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post #3 of 13 (permalink) Old 03-15-2005, 03:32 PM
 
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It's a matter of offset and fender rolling...I wouldn't call it major modification...those are 275/35/18 in the rear, 245/40/18 up front.






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post #4 of 13 (permalink) Old 03-15-2005, 09:22 PM
 
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what do you mean fender rolling
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post #5 of 13 (permalink) Old 03-15-2005, 09:51 PM
 
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I have 275-30-19 on a 10 inch wheel with no mods to the car and no rubbing at all.
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post #6 of 13 (permalink) Old 03-15-2005, 11:01 PM
 
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that looks really sweet same color scheme as mine
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post #7 of 13 (permalink) Old 03-16-2005, 04:41 AM
 
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Ya, I tried the 275's on the factory wheels and the wouldn't have worked. Well, now that I know they will work w/ AM wheels, hmmm (you guys need to stop, you'r giving me ideas). Wrk Car is yours an 05 or did you upgrade to the 05 hood. If its an 05 hood, how much are they. I'm thinking of upgrading. Trying to deside between an 05 hood and the Banshee hood. I prefer the Banshee's looks(and weight) but if the 05 is significantly cheaper I will go with it. Also, how well does it hook up with the 275's.

By the way nice rims.
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post #8 of 13 (permalink) Old 03-17-2005, 04:37 PM
 
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what kind of backspacing do you have on those rims? I dont want 19's but I would like to fit 275 on the rear.
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post #9 of 13 (permalink) Old 03-18-2005, 09:40 AM
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You can easily run 275 Nittos on the stock wheels and not touch anything. At least in the rear, no way on the fronts. The Nittos run narrower than other 275's. I've seen two cars with them and never touched the tire on the quarter.

I will be mounting 275 Nitto Drag Radials on the stock wheels and not rolling the fender. Just not needed with those tires.

Rob
04 IBM M6 GTO
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post #10 of 13 (permalink) Old 03-22-2005, 08:11 AM
 
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i actually ordered 275-40 Nitto Drags for my stock rims, i will have them today and post ASAP on how they are. i have been wondering about this topic myself for a while. by the way, i ordered them about a week ago and they didnt come in so they gave me some werid dean tires that are 255's and they fit without a problem if that helps at all.
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