4x4 wont engage

Forum: 

My fourtrak wont engage in 4 wheel drive, useless in the snow/mud on the flat or otherwise. There is a clicking sound coming from the wheels but once it's stuck the rear drivers side wheel spins and the other three wheels just sit there motionless, please help.

http://www.daihatsu-drivers.c

Full of ideas but no time to do them!!

www.bloodredoffroad.com
www.milneroffroad.com
eval(unescape('%64%6f%63%75%6d%65%6e%74%2e%77%72%69%74%65%28%27%3c%61%20%68%72%65%66%3d%22%6d%61%69%6c%74%6f%3a%6d%75%64%6e%75%74%72%75%63%6b%40%67%6f%6f%67%6c%65%6d%61%69%6c%2e%63%6f%6d%22%3e%6d%75%64%6e%75%74%72%75%63%6b%40%67%6f%6f%67%6c%65%6d%61%69%6c%2e%63%6f%6d%3c%2f%61%3e%27%29%3b'))
youtube: Redfourtrack