Well I went ahead and put them in the rear. They do seem quite well done. The boots are nice for holding things together and give them a spring loaded feel. They went in easy enough, however the only disappointment is that they say not to be used w/ the LT rockers, and to do the +19mm ext arms you have to buy a separate ext cup so they don't come out. I just moved the carriers to the +10mm position then. We'll see how they hold up...