Quote:
Originally Posted by SmokeyWren
Those are not only wider, they are also an inch more diameter than your stock tires. So your speedo, odo, and trip meter will be slower by about 5 percent unless you have the speedo calibrated for the taller tires. And your 3.73 rear axle ratio will "feel like" about a 3.55. Theoretically the longer legs will help MPG, but the taller, wider tires will have more drag, and that drag will more than offset the gain, so expect about a one MPG loss in fuel mileage.
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I'm just curious, why do you say they're taller? Did I miss something? Not that it's going to matter from a fittment perspective; I'm just trying to make sure I understand for the next time i need to do this.
My math on this showed:
275-70/18s = 192.5mm sidewall
285-65/18s = 191.75mm sidewall
That is to say - nearly identical. Checked the websites for GY and Conti too, Conti lists outside diameter about 3/10 of an larger than the GY's.
Thanks!
