There are 6 choices

Choose One

GMC 2500 PICKUP
- AC
- Without AC
  - heavy duty (opt C42)
  - standard duty (opt C41)
SUBURBAN 2500
- AC
- Without AC
  - heavy duty heater (opt C42)
  - standard duty heater (opt C41)

Heater and A/C controls for 1978 GMC C25 Suburban

Attention!

There are 6 choices for the 1978 GMC C25 Suburban Heater and A/C controls !!!
Choose Your Option

GMC 2500 PICKUP AC
GMC 2500 PICKUP Without AC heavy duty (opt C42)
GMC 2500 PICKUP Without AC standard duty (opt C41)
SUBURBAN 2500 AC
SUBURBAN 2500 Without AC heavy duty heater (opt C42)
SUBURBAN 2500 Without AC standard duty heater (opt C41)

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