2003 GMC Sierra 2500 HD: A/C Receiver Drier

2003 GMC Sierra 2500 HD equipped with
8.1L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
6.0L V8 Gas OHV,
6.0L V8 CNG OHV GM Original Equipment--Reman=No-US ACD=Y-Can ACD=Y-
EXCEPT REAR AUXILLIARY A/C(C69)
SWITCH SIDE

1 Per Vehicle