Rear wheels issue

It has come to that time for me to replace rear wheel bearing and such
while I'm at it, in which I need to bring up this question of "what"
to look for:

I have a 72 SB convertible. If you look at the rear wheels instead of
being nice and vertically straight or slightly inwards... mine are
leaning outwards. Not a "slightly"...more like a step or two beyond.
(if that makes any sense)
What is doing this? How do I adjust/fix it?
Trailing arms messed up.... maybe?
Any suggestions are welcome.


Narley Dude®