RE: CONVINCED HIM TO LET ME FIX IT!!
Tell your Dad that hobby grade RC's aren't little toys that cost 30 bucks. A 150-200 dollar beginner RC is not something you break a suspension arm and toss it in the trash. You break the part, go buy a new one, and slap it on there, then go drive! Who knows, when your dad realized it, he may wanna join you!