Hi all, My worst fear just happened, heading up a challenging hill climb,nearly at the top then my 1kz 2001 started to violently bounce, BANG i have just lost 4wd. I have 2wd, low range, the 4wd light wont go but i can still drive in 2wd i thought it could be an axle or something in the transfer case,though the noise did come from the right side.When i push the 4wd button you can here a small electrical click but thats it any thoughts would be great.