My '74 came with the glue down type dash cover and I've used them on a couple of mid 80's blazers. They fit ok with a little of massaging and a heat gun. The last one came from LMC and they are cheaper than a replacement dash pad. None of my vehicles are 100 point winners.
I had a mid 80's square that had a poor fusible link connection and the headlights would flicker. I'm a big fan of checking for poor grounds and hidden harness insulation cracks.