81-f-150 Explorer
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81-f-150 Explorer
thanks bud for the heads up on the ac situation my name is joe. my truck 77 ford trying to get in touch with numberdummy about buying a used wire harness or a new one from centech. like to get a 77 original harness this way the color codes match up. and no I dont have a donor truck wish I did though. I will need one of those safety relays though. my truck dont have one Im restoring a 77 I am the original owner.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
thanks bud for the heads up on the ac situation my name is joe. my truck 77 ford trying to get in touch with numberdummy about buying a used wire harness or a new one from centech. like to get a 77 original harness this way the color codes match up. and no I dont have a donor truck wish I did though. I will need one of those safety relays though. my truck dont have one Im restoring a 77 I am the original owner.
I have no klew where you can find a used wiring harness, and have new klew who Centech is.
What wiring harness are you speaking of?
If for the A/C, there is more than one, because there is more than one A/C installed in these trucks.
1) Factory integral A/C: The A/C controls are combined with the heater control panel on the dash.
2) Dealer installed Deluxe add on A/C. With this setup, there is a large dash bezel that sweeps across the dash, from the instrument cluster towards the right door.
This bezel covered up the glove box. The kit came with a new glove box that was hung under the dash.
3) Dealer add on Economy A/C: The small dash bezel has 2 registers, the A/C control panel is below it.
Which A/C does your truck have?
It might not even be a Ford unit. Sears, Mark IV and others sold add on A/C units for these trucks.
Post Fiend
Joined: Jul 2004
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From: Northern California
Correct me if I'm wrong Joe. 
I believe from what I read in the other threads he's posted, he's trying to install Factory A/C in his non a/c Equipped truck.
He's already got some of the parts he needs from a 1979. (not sure if it's factory or dealer A/C parts though.)
I suggested he gets the wiring harness and safety relay from a donor vehicle. Wrecking yard. The Factory A/C harness from 1975-1977 has the same exact circut structure, so I recomended getting the A/C harness out of a 1975-1977, and should work for him.
I'm not quite sure he's aware of the complications this conversion insues.
1) Cutting holes in the firewall, and dash.
2) Replacing the heater control panel.
3) Running vacuum lines
4) Different Engine Brackets needed
to mount compressor.
5) add A/C and heater ducts to dash.
6) Bigger Cooling Radiator for A/C equipped trucks.
And that's just the stuff off the top of my head.
Not just a simple bolt on, add on thing to install a Factory unit.
I believe from what I read in the other threads he's posted, he's trying to install Factory A/C in his non a/c Equipped truck.
He's already got some of the parts he needs from a 1979. (not sure if it's factory or dealer A/C parts though.)
I suggested he gets the wiring harness and safety relay from a donor vehicle. Wrecking yard. The Factory A/C harness from 1975-1977 has the same exact circut structure, so I recomended getting the A/C harness out of a 1975-1977, and should work for him.
I'm not quite sure he's aware of the complications this conversion insues.
1) Cutting holes in the firewall, and dash.
2) Replacing the heater control panel.
3) Running vacuum lines
4) Different Engine Brackets needed
to mount compressor.
5) add A/C and heater ducts to dash.
6) Bigger Cooling Radiator for A/C equipped trucks.
And that's just the stuff off the top of my head.
Not just a simple bolt on, add on thing to install a Factory unit.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
He may or may not have to change the radiator, it depends on which one of the three he know has.
One radiator was standard equipment, and is for standard cooling.
Two were optional.
One was used with Xtra Cooling and/or A/C.
The other is the 4 row Super Cooling radiator.
ALL Ford radiators have ID numbers stamped on one of side mounting brackets.
There may be an additional ID tag affixed to the top tank.
If the radiator is original, all he has to do once he finds the ID tag is post the number from it, I can decode it, tell him what it is.
The fan shroud used with the standard, Xtra Cooling/A/C radiators is still available from Ford.
One radiator was standard equipment, and is for standard cooling.
Two were optional.
One was used with Xtra Cooling and/or A/C.
The other is the 4 row Super Cooling radiator.
ALL Ford radiators have ID numbers stamped on one of side mounting brackets.
There may be an additional ID tag affixed to the top tank.
If the radiator is original, all he has to do once he finds the ID tag is post the number from it, I can decode it, tell him what it is.
The fan shroud used with the standard, Xtra Cooling/A/C radiators is still available from Ford.
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