Okay, so the rim size would need to be a 17X12.5?

Also, what do these numbers mean? 275/65/20. I get the 20" rim part.

Sorry, for the noob questions. This is the first truck I have owned, so the first time I have been looking for tires larger than what is recommended by the factory.

 

Okay, thank you for all of the help.

 

WHOOPS, double post.

 

275 means width of tire in millimeters

65 means 65% of the width of the tire is the sidewall

20 is the wheel size.

 

No the rim for a 35/1250r-17 would not have to be 12.5" inches wide...a rim that is 8.5-11 inches in width will work.

275/60/20

reads like this
275 section width in millimeters
60 aspect ratio(how tall the sidewalls are in reference to the width of tire)
20 the rim size in inches

this place might be of help....http://1010tires.com/TireSizeCalculator.asp

....beat by a minute...dang little kids

 

Tire size briefly explained....
275/60/20
275 is the width of the tire in mm's. 60 is the height of the sidewall. It's the aspect raito of the width, so the height of the sidewall is 60% of the width(275) = 165mm So now you have 165mm on top and bottom. To calculate diameter you multiply the sidewall by 2 = 330mm(top/bottom). In a mm-inch conversion that's 12.99". 20" rim + 13" of rubber = 33" diameter.
Again, 275 is the width which is 10.8", Now, 60% of the 10.8" is 6.48" and since the tire goes all way arounf the wheel there are two sides(top/bottom) 6.48*2= 12.96"+20" =32.96" diamter.

Rim sizes difer upon tire widths. You don't need a 12.5" wide rim to fit a 12.5" wide tire. Most tires in 12.5" width, you'll use 9-11" wide rim. Matching a tire width to a wheel width is not suppose to be. it'll look ridiculius not to mention is not suppose to fit it ideally. The tire will be a V-shaped and the wheel will be very succeptible to curb rashes.

 

thanks for all the help.. i went and got some tires put on and they are 285/45/22 and they fit perfect.. little rub on a sharp turn but can be fixed with a leveling kit.. around $140 i think.. looks good

 

On a 2WD leveling spacers are gonna bigtime stiffen the ride, also they will reduce your uptravel to nil. I highly recommend staying away from them. Run a spindle, different arms, or both.

 

can you explain that last part? not real familiar with spindles and arms... im on a budget so $200 is the absolute most i can spend on something like that. ill try to get a picture up tomorrow so you all can help me figure out what i wanna do with it..

 

Clairify what you want clairified. I
I install/ build suspension systems for a living, so I'm pretty darn confident I can set you in the right direction. PM me if youd like.