What do you mean not drilled to change the rubber or am i not reading it right,i had to drill the 2 rivots on the frame that goes down the door to pull apart the frame and slide the window out of the frame,or the spring tensioner bolt out of the frame.Its easy to do but i will gaurentee even a NOS 1 wont go back the same,and i could not find a rivot to fit because normal ones stick out to far so i just had mine tack welded you might say.They look really good but they are not perfect and not for the money i spent.