I Just Got My 1st Gas Rc... well 1st high speed rc car... good for a cheap price.... but one thing... my 4wd isn't kickin... sounds like its grindin and it just doesn't sound so good... just looks like the throttle gear isn't cathin the shaft to the front gear box... and I don't really want to take it apart and lose parts... I already broke my steering arm and door type mount in 1 day... but please someone I really need help because my buddys just went and got the same car and theirs run fine... 4wd and all...... Anyone that can help.. I can really use it.