At 1970 the differences got a lot more complex. the ignition switch moved up in the column and took the hazard switch with it. A standard or rallye harness from pre 1970 would not have all the wires and connectors you need in 70 and later.
Well that shot down my plans! i have one from a 70 i planned on using on my 67 cuda build. So i may have one for sale.Do you need gauges and bezel? Think i'd like to off it as one unit.