Hi Wuzhee, I have fitted replacement upper arms and adjusted them. On checking rear wheel toe, the nearside was showing it was toeing in. Worked out the 10 point nut has nothing to do with toe, its adjusted by slackening locking nut, item 1, then adjusting via item 2. Item 3 is an offset washer and fixed plate, by turning item 2 the offset washers contact with fixed plate 'moves' the arm.
I setup a DTI and adjusting item 2 by approx 10minutes (on a clock face) I achieved 0.2mm change to the toe, where I was measuring it.
I rechecked both rear wheel toe's and are now at a setting more in keeping where it should be, i.e. slight toe-in.
For info turning item 2, near side arm, makes the wheel toe more in an outward direction measuring from the center point of the wheel facing forward and measuring off tyre wall. Im aware tyre walls are inconsistent in their shape however as the wheel was locked and the DTI remained fixed then a true reading was achieved.
Thanks to everyone for their assistance to me.