I am compiling a list of all 1969 H/O parts numbers, need some help on the difference between a/c and non-a/c car part numbers for the following:

water pump pulley KA
double pulley KM pulley

Non - Air Conditioning Water Pump Pulley GM # 399401 KE
Non - Air 2-Groove Crankshaft Pulley GM # 399402 KB

 

2-Groove water pump pulley "KA" GM # 401462
3-Groove water pump pulley "KF" GM # 399404

2-Groove Crankshaft Pulley "KB" GM # 399402
3-Groove Crankshaft Pulley "KC" GM # 399405

1-Groove Power Steering Pulley "KG" GM # 399403
2-Groove Power Steering Pulley "KH" GM # 399406

Alternator Non Air "AN" GM # 1100853
Alternator Air "AM" GM # 1100852

This is what I see in the assembly manual.

 

Thanks