ConcoursMustang Forums
1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1964 1/2 - 1965 => Topic started by: silverton_ford on November 28, 2018, 12:55:29 AM
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When were the square heater ducts used? Is it specific to plant or year or both? Early or late?
I recently picked up a pair of NOS heater ducts with Ford label and part number C5ZZ-18A620-A. The box says C5ZZ-18490-K
(Sorry, I previously posted this in the wrong place. I think this is the correct place.)
Thank you, Brian
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When were the square heater ducts used? Is it specific to plant or year or both? Early or late?
I recently picked up a pair of NOS heater ducts with Ford label and part number C5ZZ-18A620-A. The box says C5ZZ-18490-K
(Sorry, I previously posted this in the wrong place. I think this is the correct place.)
Thank you, Brian
65/66 at all plants from what I have seen . I haven't seen another type unless 64.5 used something different. Hopefully the set you bought has the cardboard ends that are held in the top of the dash. That is the part that least survives . There is only the plastic reproduction alternative.
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I didn't get them. These are just the tubes. I have one end from a parts car, need another one.
Why are there round tubes too or are round reproduction?
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I didn't get them. These are just the tubes. I have one end from a parts car, need another one.
Why are there round tubes too or are round reproduction?
Round was used 67/68 and all of the reproduction hoses are round. Square is good and very desirable because it is easily recognized as square under the dash.
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Ok, thank you Bob.. I appreciate it. I recently bought these, so I am very glad I did because I plan to use them on my 66 convertible. :-)
I was initially unsure because I have seen NOS round ducts with a B5 (1955) number too (loose, not on a car) and thought maybe they carried on into the 60's. Good to know these square ducts are correct.
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silverton_ford
I fell very confident that the ducts you have are correct for all assembly plants and 66 mustangs production year.
also would you have any interest in selling the box once you use the defroster ducts on your 66 car??? got to ask!!!
Bob Gaines; do you have any evidence of the round version defroster tubes being used on any 65 san jose built mustangs??
regards.
PHILL BERESFORD
MELBOURNE.
AUSTRALIA.
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Square hoses but the ends are round??? :o :o As my Dad would say "another one of Fords better ideas". Gotta laugh..
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Round hoses were used on 64.5 through early 65. Have seen them on cars up through Feb '65... San Jose and Dearborn.
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When were the square heater ducts used? Is it specific to plant or year or both? Early or late?
I recently picked up a pair of NOS heater ducts with Ford label and part number C5ZZ-18A620-A. The box says C5ZZ-18490-K
Brian
Brian,
You can get a clue from the Ford part number. The 65 and 66 Mustang Assembly Manuals both reference part number with a C5ZA- prefix, the "5" being the clue. A 64 Mustang would have a C4ZA- prefix which in most cases, is an indication of a change in design.
Jim
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Brian,
You can get a clue from the Ford part number. The 65 and 66 Mustang Assembly Manuals both reference part number with a C5ZA- prefix, the "5" being the clue. A 64 Mustang would have a C4ZA- prefix which in most cases, is an indication of a change in design.
Jim
True, I forgot about the part number. I guess if it was a C5AZ it would fit many Ford cars, but being a C5ZZ it is specifically Mustang and obviously can't be older than 65. Where my mind went wrong was seeing all of the round hoses in the reproduction world......I know better than to assume the reproduction guys make the correct parts. For function and daily driving I'm sure most owners don't care what hoses they have, but for the guys like us that enjoy concours square hoses is necessary. Thank you for the help. :)
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silverton_ford
I fell very confident that the ducts you have are correct for all assembly plants and 66 mustangs production year.
also would you have any interest in selling the box once you use the defroster ducts on your 66 car??? got to ask!!!
Bob Gaines; do you have any evidence of the round version defroster tubes being used on any 65 san jose built mustangs??
regards.
PHILL BERESFORD
MELBOURNE.
AUSTRALIA.
Phill, the square hose is the only type that I have found on any of the unmolested 65 Shelby's that I specialize in over the years. Do you have evidence that a 65 Shelby like time frame car did not use the square tube ?
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Round hoses were used on 64.5 through early 65. Have seen them on cars up through Feb '65... San Jose and Dearborn.
Just to confirm, mine are round (Oct 64 SJ)
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My December '65-built Metuchen '66 had square ones.
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Some pics from a few SJ and Dearborn cars. I know my '65 K fastback had round ones, but don't have any pics, that was a Jan '65 Dearborn car. I have seen round hose used on SJ cars into February '65. Seems around March '65 is when the change was made to square type.
All the 64.5's I've seen had round hose, including the pace car I restored.
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My December '65-built Metuchen '66 had square ones.
All '66 should have used the square type.
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Phill, the square hose is the only type that I have found on any of the unmolested 65 Shelby's that I specialize in over the years. Do you have evidence that a 65 Shelby like time frame car did not use the square tube ?
Since it's a San Jose assembly plant thing, I would have to assume that at least the first batch of 100 '65 Shelby's had the round hose defroster duct. Unfortunately, I don't have any pics of this detail on actual Shelby's.
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Both of my January '65 Dearborn convertibles have the round heater hoses--just for another reference point.
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Just to confirm, mine are round (Oct 64 SJ)
Same here. Mine are round.
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Phill, the square hose is the only type that I have found on any of the unmolested 65 Shelby's that I specialize in over the years. Do you have evidence that a 65 Shelby like time frame car did not use the square tube ?
All of the "first batch" early GT350s that I have seen, use the round hose.
My findings match what Charles has posted.
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All of the "first batch" early GT350s that I have seen, use the round hose.
My findings match what Charles has posted.
I will have to seek out these early examples to help get a better of this transition time frame. Thank you for bringing it to my attention.
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I will have to seek out these early examples to help get a better of this transition time frame. Thank you for bringing it to my attention.
I will have to double check, but I think 5S162 may even have the round hoses.
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BOB/CHARLES/BRANT
im assisting in a car very close number wise to Brants example provided and the inside cowl still have the cardboard ducts in place although severely damaged and not re-useable there was still a small length of the round defroster duct attached.
from there I set out to source another set from a Australian car that was built in San Jose with a late January 65 (schedule build).
I also sourced a round set for a Shelby owner that is also in the first 100 GT350's as he is certain his car also had the round versions,
that's all I can add to the topic so far.
regards.
PHILL BERESFORD
MELBOURNE.
AUSTRALIA.
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Have made an observation over the years that Dearborn and Metuchen for the most part used the Square Heater Hoses in '65-'66 and that San Jose used the Round Hoses for the most part in '65-'66..
Just an observation..
:o)
Tony K.
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Have made an observation over the years that Dearborn and Metuchen for the most part used the Square Heater Hoses in '65-'66 and that San Jose used the Round Hoses for the most part in '65-'66..
Just an observation..
:o)
Tony K.
TONY, I have evidence that supports the notion that early 65's ex San Jose had round examples and then it was transitioned into the square versions for the rest of the 65 years and continues through the entire 66 year.
owned several unrestored San Jose 66 cars that all have square hoses no matter the build date.
remember Charles and I having a discussion some time ago and he had a better handle of vin number and dates from cars he has restored and or pulled apart
regards.
PHILL BERESFORD
MELBOURNE.
AUSTRALIA.
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Have made an observation over the years that Dearborn and Metuchen for the most part used the Square Heater Hoses in '65-'66 and that San Jose used the Round Hoses for the most part in '65-'66..
Think we can help out there. We've already planned on doing a survey of this item for the 65 San Jose running changes so will post a separate thread like we have in the past and the conclusion in the overall project thread. Certain we'll find that the round ones were replaced by the square ones just have to figure out when the change took place.
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My 15 May 1965 SJ fastback 5R09A2222xx has the square hoses. Can't guarantee that they haven't been replaced over time, but when I changed the heater core, all other parts appeared original.
Steve
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My 15 May 1965 SJ fastback 5R09A2222xx has the square hoses. Can't guarantee that they haven't been replaced over time, but when I changed the heater core, all other parts appeared original.
Steve
Thanks for the picture. Will use the info when I do that survey. Also helps with about four other details that will help other things.
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Round hoses were used on 64.5 through early 65. Have seen them on cars up through Feb '65... San Jose and Dearborn.
Did a quick survey and got a pretty narrow but still rough change over time period of Feb 65. Projected build date of my current latest sequential and projected build date round defroster hoses is 5R18481x/Feb 9 1965
The lowest sequential and projected build date of 5R1883xx/Feb 18 1965