Author Topic: drum brake backing plates  (Read 665 times)

Offline 1969 Cale II

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drum brake backing plates
« on: April 09, 2024, 10:15:03 PM »
This a generic question, has anybody seen, are there photos of, numbers stamped on the backing plate outsides in the small recess near adjustor hole? 2 different Fords I have done have a 4 digit number. Wonder how wide spread it might be.

Offline Bob Gaines

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Re: drum brake backing plates
« Reply #1 on: April 09, 2024, 10:34:55 PM »
This a generic question, has anybody seen, are there photos of, numbers stamped on the backing plate outsides in the small recess near adjustor hole? 2 different Fords I have done have a 4 digit number. Wonder how wide spread it might be.
If you mean the numbers that identify the backing plates then yes . I am under the impression that the numbers  have to do with identification for diameter and brake pad width.  However I don't know of a comprehensive listing with applications. For example I only keep track of the few unique different ones for the Shelby applications.
Bob Gaines,Shelby enthusiast, Shelby collector , Shelby concours judge SAAC,MCA,Mid America Shelby

Offline J_Speegle

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Re: drum brake backing plates
« Reply #2 on: April 10, 2024, 06:00:41 PM »
Agree with the identification. Two makers and two different practices as far as marking

If your are number by the brake adjusting hole then they are likely Bendix made

Jeff Speegle

Anything worth doing is worth doing concours ;)

Offline GinoJ

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Re: drum brake backing plates
« Reply #3 on: April 11, 2024, 10:43:13 AM »
These are from my early 67 ( but Aug 66 ) S code Convt.  One Bendix, one Kelsey-Hayes.

Neither have numbers.

Online AJ

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Re: drum brake backing plates
« Reply #4 on: Today at 08:05:22 PM »
I currently have 8 rear backing plates.  A mixture of Bendix 317558 317559 and KH 71086 71085

Only one of them has small number, and a letter, stamped near the adjusting hole.

On a side note,  i have a Bendix 323369 that appears identical to a 317558.  I tried but cantdetermine its original and proper application.  It functioned on my 69 Gt500 for 10 years but not its correct home.  I once owned a torino with a 9 inch so maybe i cross pollinated it back when.   

« Last Edit: Today at 08:11:33 PM by AJ »
Adrian Jacobs
70 Boss 302  Dearborn, 11/22/69, original calypso paint,  original family ownership.
70 GT500 , 02/26/69, a/c auto, candy red