I wonder what the 2M code in the ACC line of my ’63 Cutlass tag and Eric’s ’63 Jetfire tag means? It doesn’t correspond to any of the codes I’ve seen. I have several options on my car but the major ones are automatic transmission, air conditioning, power brakes and power steering. The holes in the fire wall for the air conditioning lines look like an afterthought but I have no way of knowing if they were made at the Fisher Body Plant, at the Oldsmobile Assembly Plant or at the dealership. I wonder what Eric’s car and mine have in common for the 2M code?