I have 235 75 R15s all the way around. what size would be about 2 inches wider than what i have now? I would like to have about 10 inch wide tires on back.

 

31x10.5 or 33x10.5

Dunno the metric versions off top of my head. So dunno what a 235xwhatever metric number is for 10 or 10.5

 

The metric equivalents of 10"-10.5" is any of these three widths: 255, 266, 275.

Stock 235/75 15's are about 28.87"x9.25", so that means something like a 255/70 15(29"x10"), 265/70 15(29.6"x10.4"), 275/60 15(28"x10.8).

Now those metric equivalents are mostly readily available according to my quick google search, the last one is a very common Mustang/Camaro tire, so the load rating should be a concern if you use your truck as a truck. And they are within the 3-5% height difference from stock that most tire places usually recommend so as not to knock the speedo out too much.

On my old 91 2wd S-cab LWB I put some very street oriented 31x10.50s in the rear and 30x9.50s on the front. I really liked the rake it gave. The speedo was off maybe 5km/hr or so, very minor but still noticeable.

 

I just need to know what size is at least 10 inch wide and i would like the height to stay the same.

 

Did you even read my post?

 

yes but 255,265,275's are all taller tires i dont need taller just wider.

 

holy hell. bat man.........

you have 235/75R15's they are 28.87" tall with a section width of 9.25"
you need 255/70R15's they are 29.05" tall with a section width of 10.03"

anything else........................

 

http://www.discounttiredirect.com/di...55&ar=70&rd=15
HERE.........

 

if you go up a section width number(the 3 digit number XXX/--R--) you have to go down one size on the aspect ratio number (1st set of 2digits ---/XXR--)

 

^this guy went the extra mile with even providing a link....
I rounded off my numbers in my post.
Btw, OP, 0.18" or just about 3/16" difference in height is not even noticeable when it comes to truck tires....