i saw an add on cragslist for 305 70 17 pro comp extreme all terrains with 60% tread for $250. so my question is, will they fit my truck? I have 265 70 17s on right now. and i have a set of 2002 fx4 17 inch rims on my truck. Thanks!

 

They will will rub in stock form.

 

i have always been confused by the tire sizing. is it because they are too wide? thanks for the heads up. ive been looking for cheap tires just to see whats out there before i buy new next fall and these caught my eye.lol

 

to tall. wideness is fine.

 

i thought that 305 was the width of the tire and 70 was the hight? or is it the other way around? and isnt the smaller number a fraction or a percent of the larger number?

 

i always thought the bigger number was the width because i have 265/75s on my truck now, and im getting 265/70s which are the same height but wider.... its so confusing. i gotta google this.

 

got it...

Section Width

Following the letter(s) that identify the type of vehicle and/or type of service for which the tire was designed, the three-digit numeric portion identifies the tire's "Section Width" (cross section) in millimeters.

P225/50R16 91S

The 225 indicates this tire is 225 millimeters across from the widest point of its outer sidewall to the widest point of its inner sidewall when mounted and measured on a specified width wheel. This measurement is also referred to as the tire's section width. Because many people think of measurements in inches, the 225mm can be converted to inches by dividing the section width in millimeters by 25.4 (the number of millimeters per inch).

225mm / 25.4 = 8.86"

Sidewall Aspect Ratio

Typically following the three digits identifying the tire's Section Width in millimeters is a two-digit number that identifies the tire's profile or aspect ratio.

P225/50R16 91S

The 50 indicates that this tire size's sidewall height (from rim to tread) is 50% of its section width. The measurement is the tire's section height, and also referred to as the tire's series, profile or aspect ratio. The higher the number, the taller the sidewall; the lower the number, the lower the sidewall. We know that this tire size's section width is 225mm and that its section height is 50% of 225mm. By converting the 225mm to inches (225 / 25.4 = 8.86") and multiplying it by 50% (.50) we confirm that this tire size results in a tire section height of 4.43". If this tire were a P225/70R16 size, our calculation would confirm that the size would result in a section height of 6.20", approximately a 1.8-inch taller sidewall.

 

so 305/70s are about 12 inches wide and 8 inch sidewalls?

and my 265/70s are about 10.5 inches wide and 7 inch side walls

seems to me that if anything they would be too wide... but my math could be wrong. but when you think about it that is 2 inches total differnce in height ....

 

265/75=31x10.5 i know that much.

 

285/75/16

285=width 75=hight 16=rim size

but 285 and 75 go hand in hand with each other they work out to be a percentage or something like that

245/75/16 kinda small compared to
245 40 not sure on rim size but its big and the tire is wide as hell!!!