When you buy your tires get the following size and you will have the same overall size and there will be very minimal difference to no difference in your speedometer.
18s ----> 235/40/18 actually OLDSMAN has 255s on his 18s
17s ----> 225/45/17 maybe even 235s but i dunno for sure
EDIT: I found the reference for OLDSMAN
Quote:
Originally posted by Oldsman@Feb 15 2006, 09:46 PM
you will have NO problems with that size.
i'm running 255/40r18 up front and can turn lock to lock.
so to answer the max width i would say 9" wide sidewall to sidewall and that is at a 26" diameter tire.
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2008 Chevrolet Silverado 1500 LT1 Z71/4x4
2000 Oldsmobile Alero GLS - Sold
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