Can I put 88 IROC wheels on my 88 that came with 15" wheels? I know it will throw off the speedometer a little bit but otherwise do I need spacers or will I have other problems? I appreciate the advice.

 

Yes. No spacers needed.

If you install them with 245/50/16 tires they shouldn't throw off the speedometer.

 

yea ditch thoese 15's and put the irocs on

 

Original tires would have been 215x65 series that were about the same diameter as the 245x50 on the IROCs. For a better ride and still good looks you can go with a 225x60 and still have a pretty close speedometer.

 

From what I have seen through various calculators the speedometer would not be off by a lot. Just not sure if I want to make the purchase or not. I was thinking with the larger wheels I could also get rid of my whimpy one piston front calipers. One problem, it all costs $$$$.

 

ive got a set of wheels from an 88 iroc with or without tires if your interested throw me an offer.

 

Actually with a 225/60 you would be running a 1" taller tire than if you went with the 245/50. Doesn't look to good at all to me. The speedo would be off by about 4% too slow.