speedo calibration Help!

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May 1, 2008 | 08:27 AM

VegasGT

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Joined: Feb 2006

Posts: 5

From: Nevada

speedo calibration Help!

Hi Everyone i bought a 2001 mustang that came stock with 245/45/r17 and i just bought some 18's with this tire size 245/40/r18. will there be any need to calibrate the speedo or will it be the same with these wheels and tires. Thanks

May 1, 2008 | 09:19 AM

Jazzer The Cat

Retired Moderator

Joined: Jun 2006

Posts: 9,235

From: SF Bay Area

RE: speedo calibration Help!

You don'tneed to recalibrate

245/45/17"s= 25.7 diameter
245/40/18"s = 25.7 diameter

Jazzer

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