We are trying to work out if our trials truck is in high or low range.
There is no leaver on ours however the nob on the top of the xfer box is in the same location as per below (i.e. the flat part is running side to side and not front to rear).

We tried to turn the nob however its not budging and didn't want to force it if its already in low range.
If its in high and we need to therefore turn it, which way and what is the best way to loosen the nob up? Rock the truck back and forward??