probably seized where the steel shaft of the selector goes through the ally bush
you will need to take the centre console out drill out the rivets around the difflock lever and take the lever assembly off the top of the box to free it off
if its siezed like mine was i had to take it all apart and punch the shaft out then clean the shaft up and put back together with plenty of grease
mine was stuck where the shaft 11 goes through bush 16
