Just to let you all know,
I replaced the link rod from the main lever to actuator - i got all the little pins etc with it from a land rover dealer, when fitted there was little or no slop in linkage giving a postive action and then when engaged a reassuring metalic knock could be heard all the time, less side ways movement on selcting lever.
Went out on sunday no problems at all
Thanks again
Well, I am pleased it's all sorted out now.
I checked what I said at the beginning .....
" Try making sure nothing is stopping the little linkages from going fully over.
Also, if there is too much slop in the linkages that too might reduce engagement."
I think that was good advice come the end of the day!
CharlesY