In need of some advice
 

So I need a little help here, i have a bone stock 2000 Chevy blazer ls 4wd with the v6 vortec motor, and i am trying to see how large of a tire i can get for my blazer before i start having issues with the tires rubbing and scraping on the fenders. Also, i was hoping somebody knew if the taller suspension out of the blazer zr2 would fit my rig.?

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I would say 30s on a stock suspension. 31s if you have a 2 inch body lift, 2.5 inch rough country ifs lift, or if you do a t-bar crank and shackles. *NOTE* You may have to trim some fender for 31s to fit when turning at full lock or for turning or if you go offroad.

Also the zr2 lift would net you 0 gain. The mounting points are lower on the frame than on your non-zr2 blazer, so you would still be at stock height.

i agree with tibby ...30 is about all you can do ive done alot of research on this one myself so when i get some money i can get better tires ...30/9.5 from what i understand you can run without any rubbing or modding anything on your truck.

x2 before i put the rc kit in i had 31's installed on stock rims and they rubbed on the frame when turning into parking spots but i did also turned up the t-bars 1" just to level the truck out and i didnt rub the bumper or fender. but now with the 31" mudders and 3" offset wheels i have to cut the bumper back and the rear of the fender quite a bit to get them to clear.