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07-25-2023, 08:30 PM | #1 |
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1935 -1939 Shock Arm lengths
Does anyone know the shock arm lengths, front and rear for 1935 -1939 Fords? Thank you. John
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07-26-2023, 06:55 AM | #2 |
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Re: 1935 -1939 Shock Arm lengths
39s are 4"
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07-26-2023, 08:16 AM | #3 |
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Re: 1935 -1939 Shock Arm lengths
No period Ford shock arm is only 4" long; perhaps you are thinking of the links between the end of the arm and the axle.
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07-26-2023, 09:02 AM | #4 |
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Re: 1935 -1939 Shock Arm lengths
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07-26-2023, 09:52 AM | #5 |
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Re: 1935 -1939 Shock Arm lengths
No, the shock links are NOT 4" on a '39. They are 3" at all four corners.
The 4" links were first placed on '40 Fords, front only and then only the vehicles equipped with the stabilizer bar.
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07-26-2023, 05:41 PM | #6 |
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Re: 1935 -1939 Shock Arm lengths
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07-30-2023, 11:30 AM | #7 | |
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Re: 1935 -1939 Shock Arm lengths
Quote:
With respect, I disagree with your statement. 4 shock links were introduced on the 1937 Ford (NOT the 40) for the front only. The 4 link carries part number 78-18055 A1 or A2. This was carried through 1939 on the front as well, with the only possible change being an early 39 introduction of the Marsden nut for attaching a changed shorter stud on the link versus the 5/16 fine thread and a lock washer attaching hardware on the earlier longer link. This is all documented in both the 37 and 38/9 books. If you believe the Green Book, the Shock Absorber Link Chart on page 325 indicates 3 shock links (48-18055) on both the front and rear (NOT a 4) on 1940 Fords with a 4 link being used on 60hp cars. |
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07-30-2023, 01:52 PM | #8 | |
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Re: 1935 -1939 Shock Arm lengths
Quote:
And perhaps the most glaring; no serious restorer uses the "green bible" for anything but a "loose" reference. The parts therein were intended for service with little to absolutely zero concern of authenticity. When I was researching for the "It's Ford for '40" book, I relied mostly on drawings and service letters. Mostly. The 4" link was placed into service as there was an interference created with the addition of the "new" sway bar in 1940. Hey Terry B. you have always had a great insight to the front chassis on these cars. What say you? In the meantime, I am going to dig deeper. I have been wrong before.
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07-30-2023, 09:04 PM | #9 |
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Re: 1935 -1939 Shock Arm lengths
The reprint of the Chassis Parts List dated June, 1937 lists the absorber links for 1937 models: 73, 74, 77 and 78 as follows (front) 78-18055 and (rear) 48-18055-A. It also shows that 1935-36 models used the 48-18055-A both front and rear.
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07-30-2023, 10:12 PM | #10 |
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Re: 1935 -1939 Shock Arm lengths
Using the Green Book is not what I use as well. Notice I said “if you believe the Green Book”….meaning you can take it or leave it.
Therefore, I would venture to say that it is author of the ‘40 book who’s research is flawed. Researching for these books is hard enough and mistakes are made. When I did the research for the ‘37 Book, I found the 78 part number shock link (which is 4”) was introduced in 1937 (actually in October ‘36). I also have torn down and looked at more ‘37 Fords than I care to remember and the long stud shock links happen to be one of the items I always looked for since service replacements used the thin Marsden nut. As a matter of fact, I can most likely get you the entire history of the part. I still have over 500 pages of research done by Gary Mallast when he proofread the ‘37 book and he was working on his ‘38/9 Book. I don’t think anyone can argue his ability to research the archives. (David Rehor, Don Rogers and him are the best, period). He would start with the introduction of the part and research it until it was obsoleted. I would also guess that Ford would not introduce a part in 1940, as suggested, and then retroactively assign a 1937 part number to it. I think Zeke hit the nail on the head (with his chassis parts book reference) Also, as the former Judging Standards Committee Chairman, I would deduct points if a ‘37 didn’t have 4” shock links on the front or have to be shown documentation that they were 3”… which I don’t think exists. |
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