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Post by jamezruiz on Feb 23, 2015 10:56:20 GMT -6
Just got a sweet deal *$168* on some 18x7 GXP 5x115 bolt on wheels. What do you guys think as far as tire setup? Bigger up front and smaller out back. Or should they be same size all around? I have a classic 98 aurora   |
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Post by sall on Feb 23, 2015 11:47:38 GMT -6
255's all the way around for sure.
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Post by electrostatictommy on Feb 23, 2015 16:24:21 GMT -6
I think GXP wheels are wider in front than in back. The GXP ABS is programmed for different front and rear wheels. You may have a problem refitting these on your Aurora.  |
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Post by sall on Feb 23, 2015 17:00:30 GMT -6
Front = 18 X 8, wheel offset 40mm
Rear 18 X 7, wheel offset 55mm
All will be fine with 255s though the rear is sunk in 4mm than the already horrible looking factory offset. As long as the overall tire height is the same or close to factory all is well with speedo/PCM/ABS.
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Post by electrostatictommy on Feb 23, 2015 21:38:00 GMT -6
Front = 18 X 8, wheel offset 40mm Rear 18 X 7, wheel offset 55mm All will be fine with 255s though the rear is sunk in 4mm than the already horrible looking factory offset. As long as the overall tire height is the same or close to factory all is well with speedo/PCM/ABS. Will the extra inch spread on the sidwall change the diameter slightly therefore causing an ABS sensor issue? |
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XJSman89
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Post by XJSman89 on Feb 23, 2015 21:59:08 GMT -6
I know that a few members here have run GXP wheels with no problems. 95 mushroom is the first one that I can recall, but I know there are more. I think they look great. I would get a set for mine if I came upon them.
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tigger
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Post by tigger on Feb 23, 2015 23:17:43 GMT -6
Will the extra inch spread on the sidwall change the diameter slightly therefore causing an ABS sensor issue? I wouldn't think so, 255/45R18 is almost exactly same diameter as stock.  I'm sure there is a range, just don't think <1% would cause a problem. |
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Post by sall on Feb 24, 2015 6:54:40 GMT -6
There will be no issues. I run 255/35-20 all around. With +45mm offset up front and +32mm in the rear. Front soon to changed to +35mm offset.
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Post by ohiobuckeye on Feb 24, 2015 11:13:05 GMT -6
Let us know how this works out James because I love the 5 spoke GXP look but thought the non-staggered ones off a Bonneville GXP were our only option.
Guys, can he run the 7's up front and the 8's out back on an Aurora or is the offset out of line to do that?
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Post by sall on Feb 24, 2015 13:35:54 GMT -6
It shouldn't matter. He could run one width on each side if he felt like it technically. The 40mm offset is fine and will look better. The 55mm offset should still be fine but will look worse as it will pulls the wheel in further than the 51mm factory offset. The Bonneville GXPs are +43mm offset and would look better all the way around. It's not anything some good hub and wheelcentric spacers can't take care of.
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Post by jamezruiz on Feb 25, 2015 21:05:21 GMT -6
What do you guys think on 235/50/18? Im trying to keep the price down... might have to purchase tires 2 at a time.
Thank you all for putting in all the feedback.
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tigger
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Post by tigger on Feb 25, 2015 23:42:02 GMT -6
They'll work, lol!
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Post by sall on Feb 26, 2015 8:10:16 GMT -6
They will work. However IMHO save for a little while longer. The 255s look so much better.  |
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