ConcoursMustang Forums

Restoring - General discussions that span across many different groups of years and models => Suspension => Topic started by: 1969 Cale II on April 09, 2024, 10:15:03 PM

Title: drum brake backing plates
Post by: 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.
Title: Re: drum brake backing plates
Post by: Bob Gaines 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.
Title: Re: drum brake backing plates
Post by: J_Speegle 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

(https://www.concoursmustang.com/forum/gallery/20/6-100424170025-20297864.jpeg)
Title: Re: drum brake backing plates
Post by: GinoJ 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. (http://)
Title: Re: drum brake backing plates
Post by: AJ on May 06, 2024, 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.