C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Feb 28, 2015 | 09:29 AM
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ROUTE 66's Avatar
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From: Paris Tex
Default C4 Wheel ??

Needing Help Please
A friend bought a street rod PU. It has a C4 suspension. He has purchased a set of C4 wheels. He would like to put the proper size tires on his wheels. I am not sure what tires fit a reg C4. Someone told me they are the same size all around. I am not sure that is correct. His 2 front wheels are narrower than the rear. I haven't seen them but They are not as wide as my ZR1 wheels. I will list the GM part numbers and wheel location of each wheel..
Can anyone tell me what year vette they came off of and what tire sizes he needs. Or where I can go to find that information.

LF 10180879 ACU
RF 10180880 ACW

LR 10180881 ACX
RR 10189882 ACY

Your help would be most appreciated.

Thanks Ellis.
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Old Feb 28, 2015 | 09:55 AM
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Originally Posted by ROUTE 66
Needing Help Please
A friend bought a street rod PU. It has a C4 suspension. He has purchased a set of C4 wheels. He would like to put the proper size tires on his wheels. I am not sure what tires fit a reg C4. Someone told me they are the same size all around. I am not sure that is correct. His 2 front wheels are narrower than the rear. I haven't seen them but They are not as wide as my ZR1 wheels. I will list the GM part numbers and wheel location of each wheel..
Can anyone tell me what year vette they came off of and what tire sizes he needs. Or where I can go to find that information.

LF 10180879 ACU
RF 10180880 ACW

LR 10180881 ACX
RR 10189882 ACY

Your help would be most appreciated.

Thanks Ellis.
I believe you've got '93+ 17 X 8 1/2 X 2 and 17 X 9.5 X 2. Original tire sizes would have been 285-40 on the 9 1/2 and 255-45 on the 8 1/2.

I wouldn't rush to buy tires until I made sure the offset of the wheels "on the front" didn't create issues. With only 8 1/2 wide I doubt there would be issues but if the PU had an '87 or earlier front suspension there are potential issues.

Last edited by WVZR-1; Feb 28, 2015 at 10:03 AM.
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