I went looking at a 4x4 burb and the guy had a blazer sitting there! He had a 1st gen 71 or 72 (I think) K5 (with the K5 emblems) that also had an extra option emblem under the door windows. Three letters - sxt? maybe? I don't remember the letters. He did say it was rare. Does anyone know about this? He said it had power steering, brakes and A/C from the factory. Just wondering.