I had the bushing replaced a couple years ago.
Try Omega Machine in Sacramento , CA.
They pressed in a bronze bushing with all the proper lub chanells machined just right.
They only charged $60 plus $10 shipping.
Only took a couple days, too... <img src="/forums/images/graemlins/kewl.gif" alt="" />

dave h.
'89 Raider V6 5spd;Aisin Hubs;; Gen2 LS: frt. brakes, rear coils;U.C.arms;R.trailing arms;idler arm; rear LSD axle w.disc brakes ;2 battery system for Dog's fan; relocated ECU; custom bumpers;J.Baker receiver;Conferr roofrack; t-bar crank.