rock883,
I come the conclusion that Ford/Mazda Trucks just squeek! However, after I heard mine squeek once too often I bought a tube of silicone lube and took apart stabilizer bushings one at a time and applied the silicone to the bushings. I also did this to the shock bushings and every other rubber/poly bushing I could find.
Result - no more squeeks when suspension is flexing!
Hope this works as well for you,
FM
'92 Mazda Navajo
4x4
2door
4.0LV6
3" Rough Country suspension
31x10.5 BFG AT
K&N drop in
Flowmaster DeltaForce II