AC Effective Ness
Cross-Country
Joined: Mar 2007
Posts: 76
Likes: 1
My 79 has the factory stuff still and it works good. It's nothing like a new car, but it blows cool air. I did change the expansion valve and dryer on mine a couple of years ago and recharged it w/ R12. I've never had much luck with the R134 conversions long term and they don't put out the cold air like R12. You can still get R12 on ebay easy enough.
Cargo Master
Joined: Sep 2005
Posts: 2,954
Likes: 64
the firewall on the factory AC truck is different, I would suggest aftermarket AC if you didn't have AC originally.
Freshman User
Joined: Jan 2010
Posts: 32
Likes: 0
From: MD
Universal AC A/C Under Dash Evaporator Unit Underdash : eBay Motors (item 310155562743 end time Feb-10-10 13:05:44 PST)
Pat D.
Thread Starter
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Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
My truck has factory ac, so I believe that eliminates the prospect of dropping an aftermarket system, (plus that sounds expensive) I know of two junkyards within spitting distance of my house that have every dent part you could think of, both of the junkyards owners are dent fanatics. But anyhow rounding up a used system is possible for me, and basically from what I have read so far is I want new lines (i'd have to get those anyway), a new drier, and a different air compressor. Using my original york is not an option because I use it constantly for compressed air, so with that said.
Do I need to figure out how to mount a second york? Or can I buy a smaller sanden compressor and build a bracket?
If I go with the sanden method, do I use r12 or r134a.
thanks I really appreciate ya'lls input.
Do I need to figure out how to mount a second york? Or can I buy a smaller sanden compressor and build a bracket?
If I go with the sanden method, do I use r12 or r134a.
thanks I really appreciate ya'lls input.
Freshman User
Joined: Jan 2010
Posts: 32
Likes: 0
From: MD
My truck has factory ac, so I believe that eliminates the prospect of dropping an aftermarket system, (plus that sounds expensive) I know of two junkyards within spitting distance of my house that have every dent part you could think of, both of the junkyards owners are dent fanatics. But anyhow rounding up a used system is possible for me, and basically from what I have read so far is I want new lines (i'd have to get those anyway), a new drier, and a different air compressor. Using my original york is not an option because I use it constantly for compressed air, so with that said.
Do I need to figure out how to mount a second york? Or can I buy a smaller sanden compressor and build a bracket?
If I go with the sanden method, do I use r12 or r134a.
thanks I really appreciate ya'lls input.
Do I need to figure out how to mount a second york? Or can I buy a smaller sanden compressor and build a bracket?
If I go with the sanden method, do I use r12 or r134a.
thanks I really appreciate ya'lls input.
Edit- go with the R134 in the Sanden. Much more convenient.
Pat D.
Cargo Master
Joined: Sep 2005
Posts: 2,954
Likes: 64
My truck has factory ac, so I believe that eliminates the prospect of dropping an aftermarket system, (plus that sounds expensive) I know of two junkyards within spitting distance of my house that have every dent part you could think of, both of the junkyards owners are dent fanatics. But anyhow rounding up a used system is possible for me, and basically from what I have read so far is I want new lines (i'd have to get those anyway), a new drier, and a different air compressor. Using my original york is not an option because I use it constantly for compressed air, so with that said.
Do I need to figure out how to mount a second york? Or can I buy a smaller sanden compressor and build a bracket?
If I go with the sanden method, do I use r12 or r134a.
thanks I really appreciate ya'lls input.
Do I need to figure out how to mount a second york? Or can I buy a smaller sanden compressor and build a bracket?
If I go with the sanden method, do I use r12 or r134a.
thanks I really appreciate ya'lls input.
My opinion, you should go with R-134, 12 is getting hard to come by and could disappear at any time, also the idiots running the country could make it illegal to own at any time also. I've heard alot of BS about the 134 not cooling as good as the 12, but it isn't really noticable unless your in Texas or similar climates.
You should buy a new compressor, I'd go for 10 or more cubic inches. the factory drier is probably still available, and any decent AC shop can make up the hoses for you after you've got your system all installed.
When you decide to actually do it, let me know and I'll answer any specific questions and help you with proper procedures for cleaning and installing everything.
Elder User
Joined: Jul 2005
Posts: 525
Likes: 1
My 77.5 F250 4X4 has dealer add on air. I run R134a in it with no problems. The cab is so small of a space I only run it for short periods at a time or I am to cold. I like the dealer add on air because I dont have the big box hanging off the firewall and it makes working on the 460 in it real easy.
Thread Starter
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Elder User
Joined: Oct 2009
Posts: 871
Likes: 1
From: New Albany, MS
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Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
I second the 134-A for the very same reasons,The r12 is obsolete and will get impossible to get, and all the freeze 12 and other replacements do not work nearly as well as 134.
I drive in texas as well as arizona and the 134 works great.
I drive in texas as well as arizona and the 134 works great.
Cargo Master
Joined: Sep 2005
Posts: 2,954
Likes: 64
we have a slight advantage with the pickups because the cab is so small, I'm not sure you'd get away with the 134 in a full size car. :-) Up here in New England it's not an issue.
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