The part finally arrived and I have now fitted it, there was no original in place. I didn't need to go through the wheel arch to remove a roll pin as Bryan previously suggested, but pushed out the rocking yoke pin from underneath. It has helped but it is still difficult to engage reverse.

I know this is an old thread but I got to this post from a Google search and and perhaps other interested in the answer. Well I have found a part from muddymods that's seems to fit the bill. https://www.muddymods.com/collections/freelander-1/products/freelander-1-td4-floppy-gearshift-fix-bush