Topic: 1965 Disc Brake Pedal Differences

[mustang65ld]

Does anyone have a side-by-side photo of a 1965 Manual disc brake pedal compared to a 1965 Drum brake pedal?

[mustang65ld]

I am referring to a post that I saw the HIPO forum:

"Another consideration, which many people are unaware of, is that the brake pedal for a disc brake 65 and 66 Mustang is different than a drum brake version. These pedals sometimes get mixed and although the difference is slight, Ford must have made a different pedal for a reason. The difference is the pin location for the master cylinder push rod. The pin on the disc brake pedal is moved down about the same distance as the thickness of the pin. This give the rod a longer travel in the master cylinder. It would also increase pedal effort which is the down side. The pedals are identified by a "D" stamped into the right hand side of the pedal arm just below the master cylinder push rod pin.

-Fred"

[mustang65ld]

So now the question becomes has anyone documented the difference photographically? What is the different part number call-out in the MPC?

[CharlesTurner]

So now the question becomes has anyone documented the difference photographically? What is the different part number call-out in the MPC?

Would have to look through some pedals I have to see if I can find one different and with the 'D' marking.  In the '65 single year MPC, there is a separate part number for drum and disc pedals and then a before/after 8/17/64 date... which I'm guessing is just the change from the 64.5 to 65 style.  Since 64.5 brake light switches were on the master cylinder, there must have been some type of change to the brake pedal to accommodate the new style switch on the pedal.

[C5ZZ]

I have a MT brake pedal from a 65 GT, will have
to check it for the "D" marking.

[C5ZZ]

Does anyone have a side-by-side photo of a 1965 Manual disc brake pedal compared to a 1965 Drum brake pedal?

Here you go, the pin on the disc brake pedal is a little lower.
Anyone know where the "D" is stamped? Didn't see it but it
is still in the support.

[mustang65ld]

Thanks for the photo. It is a bit difficult to discern the difference in pin position. Perhaps a measuring tape for reference would help. I am unsure where the D stamping would be. Maybe Fred from the HIPO forum would have a better idea.

[Brian Conway]

     If the question is;  Where is the 'D' stamped on a 65 manual disc brake pedal ?  The answer is;  On my 65 manual disc brake pedal: the 'D' stamping  is 1" down from the post , slightly forward, on the gas pedal side.  Brian

[6S280]

Here's two shots of the "D" on the same pedal at the "4:30" position below the pin, gas pedal side.  4/65 Dearborn coupe with Automatic Transmission.

[C5ZZKGT]

How much lower is the factory disc brake pedal? what would happen if a DRUM pedal was used?
MY original pedals were rusted beyond saving and I know for a fact that a rebuilt pedal set was installed during the restoration-brakes seem fine......

[6S280]

The pin the master cylinder rod is attached to is 1/4" lower on the DISC brake pedal assembly than it is on the DRUM brake pedal.   Its a little hard to see in the attached photos but the difference is 1/4" as measured with a caliper.  Otherwise the two pedal assemblies are identical.

[CharlesTurner]

So maybe the bore of the disc master cylinder is orientated a little lower than the drum master cylinder.  Would be interesting to take a measurement with one installed. 

[C5ZZKGT]

The pin the master cylinder rod is attached to is 1/4" lower on the DISC brake pedal assembly than it is on the DRUM brake pedal.   Its a little hard to see in the attached photos but the difference is 1/4" as measured with a caliper.  Otherwise the two pedal assemblies are identical.

Thanks for the pictures! I have seen lots of rebuilt/restored pedal assemblies on the market over the years and never have seen any reference to Disc v/s Drum pedals in '65-'66s    I don't know as much about '67'-'68s but I seem to remember a difference in them.....

Like I said earlier my pedals were swapped during the restoration, I know for a fact that the rebuilt pedal set interestingly came from a base 6 cylinder coupe that now reside in my '65 K GT Convertible....

[CharlesTurner]

Like I said earlier my pedals were swapped during the restoration, I know for a fact that the rebuilt pedal set interestingly came from a base 6 cylinder coupe that now reside in my '65 K GT Convertible....

If that's the case, then you have the wrong brake pedal for your car.

[mustang65ld]

Thanks all for providing the photos. The reason I brought this to light here is because I am fanatical about getting every detail of my restoration as close as practical to how it would have rolled down the assembly line. These minute differences fascinate me as both an engineer and restoration enthusiast.