This is information regarding the bolt trick which Ive done which works perfectly. It does absolutly no harm if done corectly. The main purpose of the bolt trick is to push the upper arm outwards a little using washers and bolts. The long screw is only used to allow reach to the hole when you have the washer/bolts behind. Its not going in any deeper then factory screws if done correctly and if it does then cut it down. If you did jump the car there will be no harm done to the upper arm/screw/bolts. Its perfectly safe. I have 1 bolt with 2 washers on 1 side and 1 bolt with 3washers on the other both having a 45mm screw. It doesnt go any deeper but probably a hair then factory. I trimed both to fit perfect and I have perfect camber with a 2 1/2 drop in the rear.