The problem I had with them was the heads of the bolt hitting the park brake strut . You may have to have a machine shop cut them thinner while on the axle if they are spot welded
I believe they spot weld them in, If not they should be or when going to tighten the lugs at times the bolt turns in out of the axle and hits the wheel cyl. when driving . They should be cut before installing in the axle. I have seen guys grind them. Your choice but the head should be the same thickness as the studs removed and then spot weld them in. We do these all the time the difference is we use grade 8 bolts or screw in race studs . You need to use bolts because there isn't enough room for good pressed studs.
