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Hey there, I know this subject comes up all of the time but I have searched all of this site and many others for the information I need. I'm looking for the vacuum diagram for my truck.
Here is the info
1978 F150 short wheel base 4x4
400 2 bbl
C6
Factory air conditioning
South Eastern USA ordering district ( Believe SC )
Calibration code 8 74 R10
Can anyone help me out with a vacuum diagram? I've looked at all of the ones on Millions page but none are correct.