again, i tried searching...but found too many topics that didnt answer my question. this weekend i went offroading and started to notice a slight knocking in my drivers side rear tire. i pull over and as soon as i stop, the tire falls compleltely off. so i think no big deal, ill put it back on, this is where the problem comes. the lugs ripped out minus the bottom 2. so i put it back on with the two remaining lugs and then get pulled into town. i had to take it to a shop because i have insufficient tools to take apart the drum and pull the remains of the broken lugs and replace them. my question is...ive heard of bigger lug sizes say "half inch" lugs? what comes stock on the 88 blazers? i heard 7/13"s but im not sure. also, could i just drill out my lugs to be 1/2 inch or is there a certain way to do it. or...is all this incorrect information?