[sailor]

More likely a bushing problem.

Feeling funky when turning (or even straight when it gets bad) is usually a sacked bushing in front or rear lower arms.

They're locked in as part of the arm, best to replace the entire arm for normal driver duty (only repl. bushings are Poly for performance, not good for average DD)

 

[sailor]

Can't confirm anything on the Moog part numbers, I'd prev. see where they sometimes have a "problem saver" version that's supposed to be an improved item.

front lower arms can cause the issue as well, both front & rear control toe, and any wiggle can make the rear end squirrelly.

Adjustable uppers would be good for a Wagon, as the Wagon tends to have too much rear camber. (replacement arms from Ford or adjustable bolts have been used)

 

[sailor]

Angles change as the suspension moves, full drop is an extreme position.