Trying to get back on the 66GS, so today I installed the front bumper that I had assembled. Used my tans jack, with a towel and a strap, to hold and protect it. My jack will angle and tilt and it works good. Used some tape to protect the new paint. 66 front bumpers does not use rubber inserts on the front. Left the brackets slightly loose, and when I had it close to where I wanted it, installed the bracket to frame bolts and snuged them up. Center the bumper and snug up the two bolts from the bracket to the bumper on each side. Then loosen the frame bolts and made the final adjustment, up down/back forth. Need to adjust and snug up the end bolts and brace but overall worked good.
Out of all the times I've used a floor jack with a Transmission adapter plate why haven't I ever thought of that? Sometimes the simplest things elude me...