Author Topic: 67 GT350 Leaf springs  (Read 1009 times)

J_Speegle

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Re: 67 GT350 Leaf springs
« Reply #15 on: May 22, 2020, 11:53:49 PM »
Have typically found on 67 San Jose car the -AR to be a lighter color and the -AM a stronger orange


To illustrate here are three C7ZA-AR








And a couple of C7ZA-AM







Have more of course
Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com babysitter :) and Judge

Bob Gaines

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Re: 67 GT350 Leaf springs
« Reply #16 on: May 23, 2020, 11:55:04 AM »
Have typically found on 67 San Jose car the -AR to be a lighter color and the -AM a stronger orange


To illustrate here are three C7ZA-AR








And a couple of C7ZA-AM







Have more of course
Orange it is  ;)
Bob Gaines,Shelby Enthusiast, Shelby Collector , Shelby Concours judge SAAC,MCA,Mid America Shelby

J_Speegle

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Re: 67 GT350 Leaf springs
« Reply #17 on: May 23, 2020, 02:04:03 PM »
Just don't always look orange  ::)  Think same question has come up many times over the years on the forums and we haven't always agreed but that's ok ;)  And we continue on :)
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Bossbill

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Re: 67 GT350 Leaf springs
« Reply #18 on: May 23, 2020, 09:18:22 PM »
I think I need to orange mine up a bit more.
I went back and looked at my original color and it has more orange than at present.
Bill

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J_Speegle

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Re: 67 GT350 Leaf springs
« Reply #19 on: May 24, 2020, 12:58:47 AM »
Was going to say that the original markings you found were more orange but figured it might just be the digit camera and or lighting :)
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T-Bone68

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Re: 67 GT350 Leaf springs
« Reply #20 on: May 31, 2020, 10:29:54 PM »
These are off 67 GT350 #2246, 5/1/67 Ford date, no ac no thermactor.  Square hole straps.
-Would AS also be a legitimate manufacturer?
-I must be confused on how the date code works.  C7ZX part number, but E03?  Can't be '63 year?  Service parts made in 2003?

Before I reuse the small leaf, would these be legit springs for a 67 GT350?
« Last Edit: May 31, 2020, 10:32:40 PM by T-Bone68 »

J_Speegle

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Re: 67 GT350 Leaf springs
« Reply #21 on: May 31, 2020, 10:46:58 PM »
These are off 67 GT350 #2246, 5/1/67 Ford date, no ac no thermactor.  Square hole straps.
-Would AS also be a legitimate manufacturer?
-I must be confused on how the date code works.  C7ZX part number, but E03?  Can't be '63 year?  Service parts made in 2003?


- As would be the version or last part of the engineering number of the spring and in term the last part of the identifying number

Your date code is "340" December 5th

E03 identifies the supplier/sub contractor who made the spring assemble. "03" may identify the plant number or something else. Have not put together all the examples I have or posted a study to determine it's meaning.

Stamping you show does not match the newer service replacements I've seen and more likely IMHO they are possibly the originals.

As far as a C7ZA-AS I don't have another example using that spring maybe someone else has. Did find it being used on a May 67 390 fastback with Auto and PS. Don't know if it was an A/C car also
« Last Edit: May 31, 2020, 11:20:03 PM by J_Speegle »
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Bob Gaines

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Re: 67 GT350 Leaf springs
« Reply #22 on: June 01, 2020, 12:11:03 AM »
These are off 67 GT350 #2246, 5/1/67 Ford date, no ac no thermactor.  Square hole straps.
-Would AS also be a legitimate manufacturer?
-I must be confused on how the date code works.  C7ZX part number, but E03?  Can't be '63 year?  Service parts made in 2003?

Before I reuse the small leaf, would these be legit springs for a 67 GT350?
Jeff indicated that "AS" in the context of the discussion is not a MFG but the suffix of the spring engineering number . "AS" was not typically used on Competition Suspension option applications. FYI all 67 Shelby's had the Competition Suspension option as standard equipment. AM and AR are the suffix that identifies the Competition suspension option springs used on 67 Shelby's. The "E" in the E03 is that the indicate Eaton. Eaton was a large Multi National corporation that among other things supplied leaf springs to Ford in 1967. 03 could stand for plant Identification.If you have C7ZA-AS springs on your car the most likely reason is that they replaced the original equipment for some reason by a PO . A mistake at the assembly plant seems very unlikely. 
« Last Edit: June 01, 2020, 12:17:42 AM by Bob Gaines »
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T-Bone68

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Re: 67 GT350 Leaf springs
« Reply #23 on: June 01, 2020, 09:10:22 AM »
Thank you very much Jeff and Bob for your thorough answers!  Sounds like they were unsurprisingly swapped out with something different at some point.  I guess Iím on the hunt now for an old spring, or just the small leaf, of a correct one.

John