My wife has a 2000 prerunner, door sticker says stock tires are 225/75/15, but they have 264/75/15's on it now. She complains of sliding some in rain, not sure if these are due to bigger tires or tire type/brand. Anyways.....she is looking at buying a set of BF Goodrich all-terrains, and considering the 31x10.5x15 which is the equivalent to what she has now I think... or I think the 235/75/15's will be better since she is not really concerned about losing the extra width and the height will be the same, right? (plus better mpg w/ the 235's) comments on which size would be better traction in the rain, if any?...thanks

 

size won't really effect traction as much as tread design/wear. if the current tires are worn out or have small tread gaps she will be more prone to hydroplaning. a tire with bigger lugs will get better traction. as far as size goes, try this to figure out tire size differences if you are a more visual person.

http://www.kouki.co.uk/utilities/vis...ize-calculator

 

I would NOT recommend the BFG ATs for rain traction. Been there done that and won't go there again. I now currently have General Grabber AT2 and I cannot break them loose in wet traction as I did with the BFGs they are rated for snow traction but in my area we don't get as much snow as the northerners do. I will warn you though, they are quite loud on the highway. Not as loud as mud terrains but loud enough for me to constantly worry about wheel bearing and differential noises.

As far as tire size goes it's more of your personal preference. If you were concerned about ground clearances when 4wheeling then I'd recommend 31" or 265-70-15 but with it being your wife's rig she might get in and out easier with the factory size and MPGs would be a little bit better.

 

ahhh.... SAE and blessed with the blessings of the freaking metric system! I swear, all the TV I watch of shows that are filmed in Europe, they all say weird things like "Foot" or "Feet" And "Mile"


Metric tires: The 1st # is the tread width in mm's.

The 2nd # is called the aspect ratio. It is the percent of the tread width. i.e "75" The sidewall is 75% tall, of whatever the tread width is.

And the 3rd, well, duh...

So yes, that 4Runner came with narrower tires than what's on it now... 40mm's narrower...

If there wasn't so many online tire calculators, I'd post the long-hand way of converting metric to standard


So yes, it is WAY more apt to hydroplane.

 

just go back to the stock size of 225/75 or whatever it is...but get a decent tread design.

cooper zeons are great for rain!

buddy had a set on his '06 dodge 4x4, 275/60/r20, and they were surprisingly hard to break loose....he has the hemi though, so it aint THAT hard to break em loose, but harder than i expected when i drove it lol

 

go to discounts website and triple check the oe size of the factory tires. get the goodyear duratracs not the bfg a/ts