Land Rover Repair: caster correction bushings, radius arms, radius arm

Question
I have a disco 97 lifted 2" it was bad on highway I lower sway bars it got a lot better but not as it should so now a got a caster correction bushings and i have a idea haw to place them but not really sure. is any mark as where the hole should align or once the holes aligned with the bolt the angle will be corrected?

Answer
Draw this out on a piece of paper to understand.  Draw the  frame and radius arm in a normal truck (slight angle)  Now draw it with the frame lifted up (greater angle)

Look at how the increased angle (lift) twists the axle assembly counterclockwise when viewed from the drive side.

Now look at the bushings and see how the offset holes can compensate for that rotating action.

That is the key to understanding what they do and how to fit them.  There is no hard and fast rule

I caution you that the bushings are not very durable and caster correcting radius arms are the only real lasting solution.