7:th-Aug-2016, 20:33:06
Easiest way to do that would be to run some white decorators tape along the front of the bumper and over the sensors and then mark the centre line of the bumper on the tape and the position of each sensor on the tape. Then peel it off and place it back on the bumper that you will be drilling, making sure the centre line on the tape matches the centre line of the bumper.