I'm surprised a poly bushing in the front mounting location would work. Poly is typically used to provide more resistance to torsion than a rubber bushing provides. In that front bushing, you want the trailing arm to pivot up and down freely, so you need the bushing to allow that, but resist forward/aft motion under braking and acceleration. A spherical bearing (or one of the spherical bushings like those offered by Ballistic Fab and others) seems like the right answer IMO.
Can you re-load the pics? I'm getting the same error referred to previously.
Edit: The hollow bolt at the knuckle to allow for greasing through the bolt is a good detail.
Can you re-load the pics? I'm getting the same error referred to previously.
Edit: The hollow bolt at the knuckle to allow for greasing through the bolt is a good detail.