Anyone have Goodyear Wrangler Silent Armor tires on their 04-06 F-150? Have been looking for replacements for my 275/65/18 BFGoodrich Rugged Trails with a taller but not wider tire. Toyo Open Country and Goodyear Wrangler Silent Armor both have a 275/70/18 (33" I believe). Would this size tire on factory FX4 wheels rub at all? I do not want to have to use any kind of leveling kit to make it work. Want the taller tire to fill up the wheel well a little more so a leveling kit would be pointless. Thanks in advance for any help.

 

I'm not a tire specialist but my understanding of tire sizes are the first #275 is the hight and the second #65 is the width. I could be wrong but I think you want a 285/65/18, that is probably 33" hight. I've seen some other threads about this. I gathered that the 285/65/18 is the largest tire you can fit without doing any level kit or lift.

 

275 is the width, 65 is the measurement from the rim to the end of the tire and 18 is the rim size.

 

The stock tire 275/65/18 is 32.1" diameter and will provide 629 revs per mile.

The 275/70/18 is 33.2" diameter provide 608r revs per mile or will be 3.2% too slow on your speedo, so if you are traveking at 62mph, the speedo will read 60mph.

Based on the 1.1 inch in diameter difference, I kind of doubt any interference problem!



275 = width in millimeters to convert to inches 275/25.4 = 10.8 " width
65/70 = aspect ratio
18" = diameter of the wheel

So based on this both tires should have equal width, it's just going to be a litter larger in diameter.