Thread: Put 285/70/17 on stock 4x4!

Good info! I was told the same thing about my 01 crew cab and shes rolling on 305/70/17s completely stock except I took off the mud flaps.

are the 285's a load range E tire? I dont know why the new trucks all come with "C" rated tires, I would like to at least put a pair on the rear for towing. My truck has factory 18's, but they make the same tire in C and E........... they must have saved a couple bucks, now it will cost me a whole lot more.

Originally Posted by Raptor05121

any pics of the width? I went from 255s to 275s. I love extra traction, especially in the rain

my truck came with 275s from the factory (275/65/18's) its a 2011 4X4 super crew, and my Dads 2001 super crew came with 275's too (275/60/17's) and his is a 2wd. I have driven it twice in blinding snow storms, both times in 4WD, and watched many cars slide around and crash. Its a very stable platform

I'm no expert, but have put larger tires than the specs call for. The manufacturer leaves itself SOME le way on size. However I believe its against the law for a dealer to knowingly sell larger tires than the Manufacturer calls for. It's probably is in some of that 2 pages of small print that comes with the tires from any good sized tire company. A little extra width as long as it doesn't rub, what harm can it do. However, every time you increase the diameter you change the gear ratio. At some point it is possible to over do it. As far as traction don't forget 200 lbs per square inch will give you more traction on slippery roads than 150 lbs per square inch. (these figure are for comparison only) Sooo, the narrower tire will give more traction on snow, ice or water than a wider tire. In Maine, when I was a kid, the town trucks always remover the outside rear dual when they put the snow plows on, why? Traction.