These bolts have been TTY for some time, including on the 5th gen. Same for the brake caliper bolts!!...Yet people re-use them all the time, because like someone mentioned many people don't know - including the service people.
Should you reuse them? No, obviously...but it's done all the time, and I haven't seen anyone's rear arms coming apart.
I think the idea behind the bolts being TTY is so they will not come undone once the alignment has been set. Or will at least, resist doing so.
I'm going to have an extensive alignment done in the spring, to determine where everything sits on this car in both the track setting, and back to street, again. I'll probably request to have new bolts put in. I will have it realigned two track days (and several months) later, at least to check on it...if the alignment has changed, I do not see myself replacing these bolts each and every time I have one done..............
