Galaxie, NAPA has the control arm bushings.
Energy Suspension has the bushings for the panhard bar. Look for the thread. I bought the parts listed in the thread, ENE 99106G.
I bought a set of poly bushings from Dearborn Classics but don't waste your money. Two of the bushings don't fit the '65. Apparently '65 and '66 had the same rear suspension. There was a change for '67? Maybe the '67 has 2 upper control arms?
Originally I wasn't looking for poly bushings but saw the ad in Dearborn Classics for years '65 thru 72. This was 4 years ago. I ended up getting the upper control arm bushings from NAPA. A mechanic installed all of these parts.
You need to re-use the original metal housings for the bushings.