1965 Dodge Dart 273 with A.C. Pulley Questions

sgrip65 I have had 2 66 "S" Barracudas with factory air and both had the single compressor drive. The 66 "S" that I kept has 43000 original miles and I have had it 34 years with out any belt troubles . I dont think you will either. I would like to find out when they changed to the two belt system or if it was just for Dodge cars. Jay