These past two weeks their has been a squeek developing in the left rear section of my 1991 FC3S. The car has the OEM suspension components, besides lowering springs. It continues to get louder with more use. Seems to be coming from the suspension. Possibly bushings?

if you have or had this problem or have any suggestions on to what it could be, please let me know.

 

It could be anything. Make sure the bearings aren't bad first of all. Try flexing the suspension by hand and see if you can reproduce the noise.