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Stock rim help ?

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Old 10-13-2009, 10:36 PM
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Car: 1990 Iroc-Z28
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Stock rim help ?

got a 1990 Iroc, 16 in rims on it, how wide are they???

i dont have anything handy to measure it (someones been in my tools)

are the 8 or 9 in?
Old 10-13-2009, 11:58 PM
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Re: Stock rim help ?

16's are 8, 15's are 7.

Note that the 16's are front/rear dependant - they have "front" and "rear" casted into the rim, and they cannot be swapped (ie front have to go up front, rears have to go in the rear). They have different backspacings on them, and the rears will rub when put on the front!
Old 10-14-2009, 07:00 AM
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Re: Stock rim help ?

16x8 Wheels marked front & rear and the biggest tires are 245/50/16 or 255/50/16.
Old 04-04-2010, 12:51 AM
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Re: Stock rim help ?

Originally Posted by camaronewbie
16's are 8, 15's are 7.

Note that the 16's are front/rear dependant - they have "front" and "rear" casted into the rim, and they cannot be swapped (ie front have to go up front, rears have to go in the rear). They have different backspacings on them, and the rears will rub when put on the front!


whats the difference in the backspacing?? thats the offset right?
Old 04-04-2010, 06:35 AM
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Re: Stock rim help ?

Originally Posted by vendetta
whats the difference in the backspacing?? thats the offset right?
IIRC, the front is 0 offset, the rear a positive 16 mm. Yes.

JamesC
Old 04-04-2010, 11:18 AM
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Re: Stock rim help ?

Originally Posted by JamesC
IIRC, the front is 0 offset, the rear a positive 16 mm. Yes.

JamesC

so if the rims im wanting have a +12mm how would i set those up??
Old 04-04-2010, 12:39 PM
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Re: Stock rim help ?

Originally Posted by vendetta
so if the rims im wanting have a +12mm how would i set those up??
I have a set of replica Vette wheels on my 89. They are 17X8.5 and have a +26mm offset and bolt up with no spacers.
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