Author Topic: 1965 Disc Brake Pedal Differences  (Read 3896 times)

Offline mustang65ld

  • Jr. Member
  • **
  • Posts: 51
1965 Disc Brake Pedal Differences
« on: January 31, 2013, 11:00:00 PM »
Does anyone have a side-by-side photo of a 1965 Manual disc brake pedal compared to a 1965 Drum brake pedal?

Offline caspian65

  • Charles Turner
  • Administrator
  • Hero Member
  • *****
  • Posts: 5714
Re: 1965 Disc Brake Pedal Differences
« Reply #1 on: January 31, 2013, 11:09:14 PM »
Does anyone have a side-by-side photo of a 1965 Manual disc brake pedal compared to a 1965 Drum brake pedal?

There's no difference in the pedal for 65-66.
Charles Turner - MCA/SAAC Judge
Concours Mustang Forum Admin

Offline mustang65ld

  • Jr. Member
  • **
  • Posts: 51
Re: 1965 Disc Brake Pedal Differences
« Reply #2 on: January 31, 2013, 11:29:47 PM »
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"

Offline caspian65

  • Charles Turner
  • Administrator
  • Hero Member
  • *****
  • Posts: 5714
Re: 1965 Disc Brake Pedal Differences
« Reply #3 on: February 01, 2013, 01:14:10 AM »
Seems like I keep getting bit lately on some of these details.  Fred would know something like that and I verified in the MPC that there is a different part number.

Guess that's what keeps the hobby interesting.  Of course, feel foolish that I never noticed that now.  :(
Charles Turner - MCA/SAAC Judge
Concours Mustang Forum Admin

Offline mustang65ld

  • Jr. Member
  • **
  • Posts: 51
Re: 1965 Disc Brake Pedal Differences
« Reply #4 on: February 01, 2013, 01:26:01 AM »
So now the question becomes has anyone documented the difference photographically? What is the different part number call-out in the MPC?

Offline caspian65

  • Charles Turner
  • Administrator
  • Hero Member
  • *****
  • Posts: 5714
Re: 1965 Disc Brake Pedal Differences
« Reply #5 on: February 01, 2013, 09:13:09 AM »
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.
Charles Turner - MCA/SAAC Judge
Concours Mustang Forum Admin

Offline C5ZZ

  • Sr. Member
  • ****
  • Posts: 468
Re: 1965 Disc Brake Pedal Differences
« Reply #6 on: February 01, 2013, 05:09:34 PM »
I have a MT brake pedal from a 65 GT, will have
to check it for the "D" marking.
MCA # 00945

65 Fastback, 6 cyl, AT, AC, PS, PB
Rangoon Red/Red Interior

Offline C5ZZ

  • Sr. Member
  • ****
  • Posts: 468
Re: 1965 Disc Brake Pedal Differences
« Reply #7 on: February 01, 2013, 06:12:14 PM »
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.
MCA # 00945

65 Fastback, 6 cyl, AT, AC, PS, PB
Rangoon Red/Red Interior

Offline mustang65ld

  • Jr. Member
  • **
  • Posts: 51
Re: 1965 Disc Brake Pedal Differences
« Reply #8 on: February 01, 2013, 07:25:35 PM »
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.

Offline Brian Conway

  • Hero Member
  • *****
  • Posts: 1288
Re: 1965 Disc Brake Pedal Differences
« Reply #9 on: February 01, 2013, 10:19:10 PM »
     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
5RO9A GT  4 Spd Built 5/29/65
9TO2R SCJ 4 Spd Built 9/19/68
San Diego, Ca.

Offline 6S280

  • Newbie
  • *
  • Posts: 37
Re: 1965 Disc Brake Pedal Differences
« Reply #10 on: February 02, 2013, 10:00:12 AM »
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.
« Last Edit: February 02, 2013, 10:04:13 AM by 6S280 »

Offline C5ZZKGT

  • Gold Level Subscriber
  • Hero Member
  • *****
  • Posts: 800
Re: 1965 Disc Brake Pedal Differences
« Reply #11 on: February 06, 2013, 01:47:44 PM »
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......

Offline 6S280

  • Newbie
  • *
  • Posts: 37
Re: 1965 Disc Brake Pedal Differences
« Reply #12 on: February 06, 2013, 10:36:26 PM »
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.

Offline caspian65

  • Charles Turner
  • Administrator
  • Hero Member
  • *****
  • Posts: 5714
Re: 1965 Disc Brake Pedal Differences
« Reply #13 on: February 06, 2013, 11:33:06 PM »
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. 
Charles Turner - MCA/SAAC Judge
Concours Mustang Forum Admin

Offline C5ZZKGT

  • Gold Level Subscriber
  • Hero Member
  • *****
  • Posts: 800
Re: 1965 Disc Brake Pedal Differences
« Reply #14 on: February 07, 2013, 07:43:20 AM »
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....