No issues at all it went very smooth, I pressed out the old studs separated the hubs from the old rotors with the help of a big flat head screw driver, cleaned off the hubs inside and out and I used two deep well sockets to press the new studs in, one just big enough for the threaded part of the stud to fit in loosely and another one the same size as the back of the wheel stud and they went right in. I had the luxury of a nice hydraulic press at the shop to use so it was a piece of cake.