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Restoring - General discussions that span across many different groups of years and models => Drivetrain => Topic started by: C9ZZD0ZZ on September 07, 2010, 09:42:02 PM

Title: 2 1/2inch rear drum brake question
Post by: C9ZZD0ZZ on September 07, 2010, 09:42:02 PM
Can someone tell me the correct backing plate numbers for the 2 1/2 inch rear brakes? I have looked a 3 67 Shelby`s now and found K+H 71086 and 70858 on them all. But I`m being told that there are also bendix numbers 21882-L and 21993-R? What years had which? Also being told that my 69 GT500 should have them? And not by anyone I would consider an expert. Is this true?  Anyone know what came on what?
Title: Re: 2 1/2inch rear drum brake question
Post by: Bob Gaines on September 08, 2010, 03:14:51 AM
Can someone tell me the correct backing plate numbers for the 2 1/2 inch rear brakes? I have looked a 3 67 Shelby`s now and found K+H 71086 and 70858 on them all. But I`m being told that there are also bendix numbers 21882-L and 21993-R? What years had which? Also being told that my 69 GT500 should have them? And not by anyone I would consider an expert. Is this true?  Anyone know what came on what?
The 67 Shelby did not use the Bendix backing plates. The 67 used the KH backing plates. You see Bendix backing plates used on NJ 68 Shelby's and Dearborn produced 69/70 Shelby's but not in 2 1/2 inch. The 69/70 Shelby should not have 2 1/2 inch backing plates. It was regular Mustang size brakes that also came on CJ MachI's, Boss 302 and Boss 429 as well. I hope this helps. Bob
Title: Re: 2 1/2inch rear drum brake question
Post by: C9ZZD0ZZ on September 10, 2010, 11:54:53 AM
Thats what I thought. OK so did 65-66 use the bendix backing plates? and are those the correct numbers I listed earlier?
Title: Re: 2 1/2inch rear drum brake question
Post by: Brian Conway on September 11, 2010, 11:13:28 PM
 65 GT Fastback  K/H 48620 & 48621
 69 Mach 1  SCJ  K/H 71085 & 71086
                                         Brian
Title: Re: 2 1/2inch rear drum brake question
Post by: s2ms on September 16, 2010, 10:59:38 PM
Thats what I thought. OK so did 65-66 use the bendix backing plates? and are those the correct numbers I listed earlier?
From what I've observed all 65 GT350's and some 66 carry over cars used KH-49294 (R) and KH-49295 (L) 2-1/2" backing plates.  Some 66 carry over cars and most, if not all, production 66 GT350's used KH-70390 (R) and KH-70391 (L).