There is hole in the linkage that lines up with a round impression (boss) on the side of the transmission case. Loosen clamp nut on slotted linkage rod, put gear stick in "D", use a 6mm drill bit to align linkage with boss on case, ensure gear stick in held in 'D' position slightly towards "N" (i.e take up slack in 'D" position on "N" side) while tightening the clamp bolt.
This might also be of interest if you haven't already seen it:
http://www.pertheseries.com/other_fi...(EAII-EF1).pdf