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Don't RACE with these wheels

3150 Views 9 Replies 6 Participants Last post by  VWA2MKII
Does anyone have experience with taking apart a Diablo wheel? :confused:

The bolts that hold on the two pieces should all be the same size. The holes on the two pieces are 6mm in dia, and the bolt without thread should fit snug, about 5.990. What I found after taking apart 8 wheels, is that on one set of four, 40 out of 140 were 5.00mm. And, on the other set, 46 were also undersized. The part numbers are different, but the thread size is the same. The shank is undersized. I think they got mixed up by mistake in assembly at the factory. The two sets were from a 91. I'm taking apart a 92 & 97 set in a few weeks. I'm am very interested in what I may find.

I don't want to sound an alarm, but it seems to me that this could be dangerous. You wouldn't want to be racing with this condition.

Facts: Sizes should be the same. No pattern with regard to staggering of bolts to offset the air stem and any other unbalanced parts. Each wheel with many undersized bolts needed more weights to balance the wheel. Wheels with 12 - 17 undersized needed 5oz of weights, another with 4 - 8 undersized needed only 2oz.

Any comments?

I am in contact with the factory. I will let you know.
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I currently have a 3 piece OZ wheel for my Diablo that is in pieces after being re-chromed. Could you provide me with the contact information for the OZ shop that put your wheel back together?

Thanks,
Dave Heacock
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