Quick question on mud flaps?

[Vindutch]

This is for the GM mud flaps.Yes you do use some of the existing push clips.For the front mudflaps you have to use one bolt that is already there and they want you to drill two holes right through the painted part of the fender.I didnt want to do that just in case i wanted to take them off so i used 3M gray tape and it worked well. They also want you to drill a hole through the black fender well and use a push pin they supply but i didnt the 3M worked good enough that i didnt need it.The back mudflaps use one push clip that is alresdy there and they give you a screw inplace of the other.And again they want you to drill trough the plastic back bumper but here again i used the 3M tape.