Ray mentioned replacement with two-piece flanged bushings made of glass filled delrin or mds nylon (click here).
Top view of right side outboard pivot (all 4 look like this):

Inboard end extends from control arm:

Outboard end is about flush with control arm:

Questions:
1. Has the pictured bushing slipped?
2. How to remove the stock bushings?
3. Would the flange of the replacement bushing be the same thickness on both sides (inboard/outboard)?
4. Is there need for steel washers between the bushing ends and the pivot brackets?
5. Is there need for a steel sleeve on the inner diameter?
6. Would mds nylon 6/6 work well? It's only about $9/ft for 1.5" extrude rod...
7. Would the replacement bushing be a press-fit to the arm?
8. Would the bushing ID be lubed with moly-grease on assembly?
Thank you,
Bill