i really want to buy the http://www.summitracing.com/parts/CRR-3975834/ (crager soft 8's) as my new wheels. i need new tires soon too so should i just stick with the stock size 235/75/15 or go a little bigger? im not sure what i can fit at stock height.
thanks

 

i think you can fit 30's
when i bought my blazer it had 30x8.50 15 on it i think

i know they were 30 not sure on the width

 

30's are as big as you can go with stock height. I'm running 30x9.5 R15's right now and they're as close as you want to cut it with stock height.
If you're looking to go bigger (like 31's or 32's) you'd need to look at a 2" body lift.

 

with those rims(4" backspace) i would stick to the stock tire size if you choose to run 30's youll have to trim.

 

30x9.5 will work but as Mike said you'll have to trim. I'd recommend finding some rims with stock backspacing.

 

I don't know much about rims and backspacing..but out of curiosity is it because of those specific rims that he would have to buy spacers? Because I'm running 30x9.5 on my stock rims without any trimming or rubbing..?

 

im also thinking of keeping the stock rims and just getting new tires...any certain kind you guys would recommend? and ya id like to go as big as i can get
thanks

 

A quick search will answer all of these questions.

 

with a stock rim the biggest you can fit is 30's, like Will said a simple search would answer these questions.