i had that problem, believe it or not, my 5 studs broke off while doing 70 on the freeway, how, i think the tire shop left the nuts loose. lucky for me, it was the rear tire and the axle pinned the tire down and didn't let it fly away. what i did was push the studs in just enough to get through the rim, then put the nut on and tightened them really good. i kept tightening them several times a day for about 5 days. it was not the best solution but it worked.