Restoring - General discussions that span across many different groups of years and models > Suspension

drum brake backing plates

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1969 Cale II:
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.

Bob Gaines:

--- Quote from: 1969 Cale II 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.

--- End quote ---
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.

J_Speegle:
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

GinoJ:
These are from my early 67 ( but Aug 66 ) S code Convt.  One Bendix, one Kelsey-Hayes.

Neither have numbers.

AJ:
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.   

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