'63 Val - steering arms - manual/power - same?

I have a '63 Signet. I may have to replace the lower ball joints (haven't checked them, but I did have to do the 4 tie rod ends). My question is: Are they different manual or power steering???
I ask because I checked my Aussie Valiant parts car (it has manual steering) and the steering arms appear to bend away from the brake backing plates at less of an angle than the Plymouth Valiant with power steering. It's pretty hard to get an accurate idea but they look a bit different.
Yes, I know that there are sources for the US lower ball joints, but I will pay dearly for shipping and if I replace them would I need to order power steering ones????
Our LBJ's out here are much cheaper and shipping is next to nothing, but the Aussie ones just don't look right.
Any info much appreciated.:happy7:. Thanks