Rear Spring Question

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Model T Ford Forum: Forum 2012: Rear Spring Question
Top of pagePrevious messageNext messageBottom of page Link to this message  By David Martin on Sunday, November 25, 2012 - 09:36 am:

Does your rear spring have this chamfer on the top leaf? Please let me know what year / #of Leaf spring you have. Thank you.

Spring


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Treace, North FL on Sunday, November 25, 2012 - 11:07 am:

Rather typical for the '25 and later springs to have the that 8th leaf with a bevel. Same on the 9-leaf sedan springs.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Larry Smith on Sunday, November 25, 2012 - 11:11 am:

If the top leaf didn't have that bevel, it wouldn't fit up into the frame which is rounded front and back. I also suggest using a leather pad.


Top of pagePrevious messageNext messageBottom of page Link to this message  By David Martin on Sunday, November 25, 2012 - 01:14 pm:

Dan, Have you seen it on a spring earlier than '25? I have not. I'm thinking it may be linked to the heavier frames / rear cross member, but can't tell for sure.


Larry, Not all springs had the bevel. The drawings I have seen do not show this bevel in fact.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Treace, North FL on Sunday, November 25, 2012 - 02:46 pm:

David

Just the later springs seen with the wide bevel, here is one off a '23


Top of pagePrevious messageNext messageBottom of page Link to this message  By David Martin on Sunday, November 25, 2012 - 03:30 pm:

Wow, how tall is that head on that bolt? The 23/24 drawings indicate a 1/4" high head, but I always suspected higher to make the thick pad fit right.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Treace, North FL on Sunday, November 25, 2012 - 04:41 pm:

Maybe so on that 1/4", but a high head on the spring bolt will prevent the spring stack from a slip out of the cross member, and a leaning over Lizzie.




Top of pagePrevious messageNext messageBottom of page Link to this message  By Larry Smith on Sunday, November 25, 2012 - 10:21 pm:

From what I've seen, the high head bolt that Dan posted was used on the taper rear springs. I know the later ones aren't that high. Great comparisons Dan.


Top of pagePrevious messageNext messageBottom of page Link to this message  By David Martin on Sunday, November 25, 2012 - 10:38 pm:

I second what Larry said; great photo Dan. The top bolt, with the radius on the corners and head, seems to be an example of the typical later tie bolt. Thank you for posting these Dan.


Top of pagePrevious messageNext messageBottom of page Link to this message  By john kuehn on Monday, November 26, 2012 - 09:32 am:

Thats a new one on me about the higher bolt.
All the springs I have seen including the older taper leaf springs had the standard height bolt. At least on the frames and springs I have in my parts pile.
Maybe they were changed out over time.
None of the parts suppliers show a repo or maybe I missed it.
Just wondering if Ford always used a pad under the rear crossmember.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Treace, North FL on Monday, November 26, 2012 - 09:49 am:

Ford used the pad to top of the spring since the beginning :-)

1909 Parts and Price Book





Agree that high head spring bolts were early, at least thru the taper leaf period, then went to the more square thinner one, but I prefer to find the high ones at swaps and use them.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mike Walker, NW AR on Monday, November 26, 2012 - 07:26 pm:

Those low-head bolts don't hold the spring in the crossmember hole very well, since they barely clear the pad. I think I'll start welding or brazing a square nut on top of the bolt to extend it.


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