Pneufab
+1y
for mustang II since I made my own lowers I used pete and jakes bushings I had laying around. They work well for 1.250" tubing and under
for uppers unless you are making your own upper mount and not using the cross shaft, this has been kinda a headache for me (not having a lathe to bore tubing to fit other bushings is another)
Try calling TCI (total cost involved) they offer "new" upper and lower urethane bushings that they should sell separately.
t