will they fit?

I am thinking of putting either 30 x 9 or 31 x 10.5 rubber on 15inch rims. I drive a 99 3dr blazer 4x4. It is currently at stock height. I was wondering if i could put either size of rubber on my truck without the tire rubbing. Thanks for your help.

just a change to my above tire sizes. i wanted to put on 30 x 9.5, not 30 x 9.

We've test fit 30x9.5 and fits fine. If want to run 31x10.5, you need to check clearance by looking at specs of what you're running vs 31x10.5 specs. What size are you currently running?

i am currently runing stock tires. i think they are 205 75R 15, or maybe 235 70R 15, i cant remember exactly.

Thanks for your help on this. I have been wondering if i could put that tire size on my truck, but i havnt had the time to go into a shop and ask.

If you're running one of those sizes then 30x9.5 would be the way to go as long as your rim is at least 6.5" wide. We show that the original rim was 6" wide so this prevent you from running 30x9.5. Check the outside of the rim, to see if the size is molded into the wheel. If it is, it will say 15x6JJ, 15x6.5JJ or 15x7.0JJ or something similar. The 6, 6.5 and 7 indicate the rim width.

i looked on my rim but was unable to see the rim width. I checked the sticker on the inside of my drivers door and it contained information about tire sizes and rim sizes. It says that for a front and rear tire size of 205/75R/15 the rim size is 15x7J. So does this mean that i can put the 30x9.5 tires on my truck?

Yes