Thanks for everyones input, i have had a look and it seems all linkages are moving as they should. There doesn't seem to be any hi lo or Neutral. The only time it seems to do anything is if i move it over to diff lock, the light comes on and i can hear the change to lock but still no hi lo or neutral. when i move it from hi to low there is no pressure its like to easy to move between hi low and neutral, any ideas or suggestions ?