I was wondering if anyone else has had this problem. My buddy has a 01 chevy1500 shortbed the 4wd isn't working at all and the light won't even come on. I traced the wires back to the ball type switch on top of the t case (np261). If I were a betting man I'd say the ball switch isn't working. I say this because my reverse switch on my nv3500 has the same style switch and it went bad. Like I said I just wanna know if anyone else has had this problem before I make him go buy a new switch. Input anyone?