really confused about offset??!!!??

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Old 07-31-2008, 10:00 AM
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really confused about offset??!!!??

Okay so im thinking about getting new wheels for my 04 tl. But im really confused about the offset. I do not have a drop on my car and I do not plan on dropping my car because of crappy ass roads I drove on a everyday bases. Now i saw some very nice rims that have a offset of +35. I know the stock wheels on our tl's is 45. Can anyone explain to me how offset works. I did do a search but still dont understand it.
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Old 07-31-2008, 10:04 AM
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from Reliabletool.com:


Offset is measured from the wheel mounting surface to the centerline of the wheel. There are two types of offset - Positive and Negative.
Positive Offset is when the wheel mounting surface is outside of the wheel centerline.
Negative Offset is when the wheel mounting surface is inside of the wheel centerline.
Old 07-31-2008, 10:09 AM
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btw the wheels i was looking at were 18s with a offset of +35
and the other ones were 19s with a offset of +40
will these fit on the stock tl without being lowered.
and would i need spacers?
Old 07-31-2008, 10:35 AM
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they will fit... anything with +32 or more is ok.
Old 07-31-2008, 02:42 PM
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I'm stupid when it comes to figuring out drawings like the one above..lol
With a plus offset, which pushes the wheel outward more, a +32 or a +35?
Old 07-31-2008, 03:19 PM
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a 32 pushes the wheel out more. any offset between 34 and 45 works, but it has to be an 8" wide wheel. an 18x8 +35 and 19x8 +40 will both be fine but u gotta keep in mind if the width changes the offsets change slightly to account for the extra width.
Old 08-03-2008, 05:12 PM
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Question

Originally Posted by wasupdog
a 32 pushes the wheel out more. any offset between 34 and 45 works, but it has to be an 8" wide wheel. an 18x8 +35 and 19x8 +40 will both be fine but u gotta keep in mind if the width changes the offsets change slightly to account for the extra width.
Now I'm confused?????? Centerline is centerline, no matter what width the wheel is? Isn't the offset measured off the centerline of the wheel?
Old 08-03-2008, 07:58 PM
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Originally Posted by firstacuratl
Now I'm confused?????? Centerline is centerline, no matter what width the wheel is? Isn't the offset measured off the centerline of the wheel?
think about it, when the width of the wheel is increased so is the length of each side of the centerline, so a higher offset is needed.
Old 08-04-2008, 11:44 AM
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Originally Posted by ifirahse
think about it, when the width of the wheel is increased so is the length of each side of the centerline, so a higher offset is needed.


well becareful

i have a set of 18x8.5 and offset was +45

they didnt fit, scratched the caliper sligtly and had to take them off

needed a 10 mm spacer...

now i have a very light scratch on both calipers...(stupid wheel guy didnt spin the wheel to make sure it fit before attempting to drive off the lift...)
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