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ac line and drier question

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Old Jul 2, 2017 | 04:53 AM
  #1  
F-250 WARHORSE's Avatar
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From: starship enterprise
ac line and drier question

I have been looking at parts and finding that the 78-79 ac driers and lines on factory installed systems, seem to have a few variances, one is offered as a drier that both in and out ports exit at bottom, the other is one drier port is on top one on bottom. Was there a SN break, year break, or anything I need to look for while looking for replacement parts?
 
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Old Jul 2, 2017 | 09:49 AM
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This doesn't really answer your question, but I recently overhauled the AC in my 79. It had a direr with both ports at the bottom. They are still cheap and readily available. I had planned one reusing the still line connected to it, but it has a weird fitting on the opposite end that didn't jive with modern common fittings. I just tossed it and replaced it with hose.
 
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Old Jul 2, 2017 | 10:16 AM
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D2TZ-19959-B .. Dehydrator & Receiver Tank - Tube at top and bottom - Use with factory installed integral A/C (Motorcraft YL-30) / Obsolete

1972 F100/350 from serial number N40,001; 1973 F100/350 before serial number S20,001; 1978 F100/350 & Bronco.
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D4TZ-19959-A .. Dehydrator & Receiver Tank - Tubes attach to bottom - Use with factory installed integral A/C (Motorcraft YL-92) / Obsolete

1973 F100/350 from serial number S20,001; 1974/79 F100/350; 1978/79 Bronco.
 
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Old Jul 2, 2017 | 07:42 PM
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Looks like 1978 was an oddball year. According to ND the 78 pickups could have been either. My 78 was the A model with both ports on the bottom.
 
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Old Jul 2, 2017 | 09:14 PM
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From: starship enterprise
apparently so, I was looking into new lines and wondering what lines would fit what drier, seems clear now. Thanks bill. I have seen only 78 models with this different drier and hose routing and condenser, 79 models had the "both at bottom" but I have also seen 78 models like so, 78 must have been a configuration for what date or what plant or what ?????? causing a configuration for atleast 2 components that were different. I believe I can move forward now with the "both at bottom" hoses, drier, and condenser. Thanks again.
 
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