My truck didn't have A/C originally, I added it a piece at a time using mostly new or NOS pieces. I don't remember seeing a black ground wire for the relay. The new harness had wires for all prongs of the relay but no seperate black ground wire. I used 2 screws and secured it to the firewall area which should be a good ground anyway. This has got me miffed.
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Mike Stacy, S. Calif.
1971 Factory Hugger Orange Shortbed, 350/350, 20" Torq Thrusts, 3/5 drop (belongs to my son Christopher now)
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