Wheel/Tire size help needed ASAP!

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Jun 25, 2007 | 11:32 PM

my01ws6

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From: Missouri

Wheel/Tire size help needed ASAP!

Ok here are my questions....I had 275/40/17s on my stock WS6 Rims....now I bought 18" American Racing Rebels....I bought 275/35/18s all the way around for the rims....

Now what Im wondering is do I need an allignment after I put these on? anything? speedo recalibration? anything at all??

Jun 25, 2007 | 11:37 PM

Blakbird24

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Quote:

Originally Posted by my01ws6

I did that exact same change in tires and it actually made my speedo more accurate. It was off by maybe 2mph, now it's dead on. Pure dumb luck i suppose. There is a slight reduction in overall diameter with those tires, so theoretically, it may throw off your speedo. I can't imagine you'll need any alignment changes due to those tire sizes.

Jun 26, 2007 | 09:42 AM

JR HAWK 9

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no, that is the correct size tire for an 18" wheel that will be as close to the circumference of the stock sized tire. It will only be ~0.3% off, so when your speedo reads 60mph you will actually be going 59.8mph, in theory anyway.

no need for an alignment after a rim/tire swap. You are good to go, you don't need to do anything more but to enjoy your new rims/tires

Jun 26, 2007 | 11:12 AM

my01ws6

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From: Missouri

sweet thanks guys!!! I knew there so was kind of calculation I just dont know how to do it and I heard you have to be within 3% or something like that....

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