Well, for those that want to know.
That part number above, is the same-ish bushing as what is stock. (for an 04 Rubi. YMMV)
I drilled out the stock holes in the axle bracket to 1/2". I reamed out the bushing sleeve to 1/2". And I used a lock washer and a nylock nut on the backside. And a regular flat washer on the front.
I even put a couple of tack welds on the front washer to keep it in place. Adds a little extra meat so the bolt doesn't oval the hole again.
Jeepie handles like a sloppy sports car again!