Lower control arm bushings*%#@#

Yes 1 3/8". When I looked on EBAY there were others.
Just put the tap in the vice and screw the arm onto it.
Makes a tough job simple.

airwoofer, I have not used the poly bushing but my understanding is it fits inside the shell so you don't remove it. All you do in that case is press out the inner part. The rubber then comes out easily with a screw driver.