Larry posted the link for TA's 68-72 A-body pads... Unfortunately, the only frame pads for the 73-76 Century/ Regal/Luxus that work are from, unfortunately, the 73-76 Century/ Regal/ Luxus that came with the 455 or 455 Stage 1 engine (A VERY hard to find car, as not many were built thanks to OPEC embargo in 72, causing Americans to scurry away from big blocks in search of better mileage). I recently searched through a local MONSTER size yard for another V8Buick member, and struck out. Another member posted pix recently of a yard near him that had at least ONE potential source, as his first picture was of a Stage 1 73 or 74 Century. http://v8buick.com/index.php?threads/old-abandoned-buicks.324722/#post-2714220 I also heard, but do not know, that you can modify 'big car' 455 frame mounts from that time frame.