Ford sells a bushing lubricant, I used that on my sway bars because the stuff that came with them was garbage. It really has to be driving you nuts for you to tear everything back apart to lube the bushings though. That is a lot of work for a sqeak.
Former owner of 94 Bird with DOHC 4.6L swapped from a mark VIII
2011 CTS-V Wagon
1968 Torino was an original 289, C4, fully documented numbers matching car. Now: DOHC 4.6L/T-56 swapped, Cobra intake, IMRC delete, BBK long tubes and H pipe. Dynotech Aluminum Driveshaft, 9" rear with TrueTrac and 4.11's.