yep, based on the pics it looks like both of those arms could be working against the movement of the leaf.

sway bar arm is much shorter than the leaf so it will be travelling a different arc to the leaf, and it's almost solid mounted to the leaf - there's no link pin to take up any difference in dynamic lengths. You could test for a bind condition there by disconnecting the end of the sway bar and jacking up the diagonally opposite corner to compress the leaf 2-3". If the sway bar no longer lines up with it's mount on the leaf spring, that's an issue. Then test for bind in droop by jacking the front up on the same side of the car.

Do the same with tests with the traction rod unbolted at the rear. If the mounts don't align at 2-3" of droop and bump, you've got bind.