1967 Rotors - Vintage Mustang Forums
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post #1 of 16 (permalink) Old 09-06-2019, 12:18 PM Thread Starter
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1967 Rotors

I have a couple quick questions regarding the specs...

The shop manual indicates rotor thickness as .81 ( iirc). Is this the minimum, at which point they should be replaced?

The 2nd question is more of a concours question, but, is there a source for just the rotor (not the hub) of a 2 piece original assembly? Are there 2 piece rotors even out there anymore?

Thanks!

67 390 Coupe C6, PS, PB, AC (SJ built 1/4/1967)
67 390 Fastback C6, PS, PB, AC, Tilt (Dearborn 3/5/1967)
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post #2 of 16 (permalink) Old 09-06-2019, 07:14 PM
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You mean these?
https://www.npdlink.com/product/roto...0822?year=1967

Yeah I'm surprised most orig style 2 piece rare

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post #3 of 16 (permalink) Old 09-06-2019, 07:30 PM
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Yes, .810 is the minimum thickness. Anyone machining them thinner is taking a very big legal risk.

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post #4 of 16 (permalink) Old 09-06-2019, 08:57 PM Thread Starter
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I came across an original set of K/H calipers and 2 piece rotors and wondering if the rotors can be restored...meaning can the hub be separated and a new rotor attached

Last edited by Knapper; 09-06-2019 at 09:17 PM.
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post #5 of 16 (permalink) Old 09-07-2019, 08:08 AM
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A two piece rotor from Mustang America??
Mustang America - Item MA15600: 1964 1967 Front Disc Brake Rotor

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post #6 of 16 (permalink) Old 09-07-2019, 08:25 AM Thread Starter
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Originally Posted by sixtysevenGTconv View Post
You mean these?
https://www.npdlink.com/product/roto...0822?year=1967

Yeah I'm surprised most orig style 2 piece rare
Actually that should work perfectly! I am on NPDs site religiously, but didnít even think of checking with them.

Thanks!!
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post #7 of 16 (permalink) Old 09-07-2019, 03:34 PM
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I believe you can also get the rotor alone at Rockauto.

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post #8 of 16 (permalink) Old 09-07-2019, 06:23 PM
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Didn't know anyone was making 2 piece.
Maybe they're more generous thickness? The OE ones from Century were a joke back in the day.
Right out of the box they were "at throw away spec."

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post #9 of 16 (permalink) Old 09-07-2019, 07:59 PM
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To my knowledge, no one makes the 64-67 2 piece rotors, OR the replacement rotors for the hubs.
We do have the rotor only for the 68-73 2 piece setup.
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post #10 of 16 (permalink) Old 09-07-2019, 09:11 PM Thread Starter
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To my knowledge, no one makes the 64-67 2 piece rotors, OR the replacement rotors for the hubs.
We do have the rotor only for the 68-73 2 piece setup.
Thanks for chiming in Dan. I looked more closely at the linked rotor from NPD and it states 260 and 289 as applications. I have a 390. Did the 390 use a bigger rotor?
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post #11 of 16 (permalink) Old 09-07-2019, 10:22 PM
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Quote:
Originally Posted by Knapper View Post
Thanks for chiming in Dan. I looked more closely at the linked rotor from NPD and it states 260 and 289 as applications. I have a 390. Did the 390 use a bigger rotor?
Nope. All '67 disc brake cars use the same parts.

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post #12 of 16 (permalink) Old 09-08-2019, 04:26 PM
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Quote:
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Thanks for chiming in Dan. I looked more closely at the linked rotor from NPD and it states 260 and 289 as applications. I have a 390. Did the 390 use a bigger rotor?
As @Woodchuck said no but for Trans Am racing they would use Galaxy, Tbird rotors from 68 and later which were just under 12" and 1" thick on those hubs with 67 and earlier KH 4 piston calipers for 65/67 Galaxy and T bird with a custom mounting bracket. The rotors used on these cars were slightly larger. Anyway made for a very powerful braking system. @GT289 can explain better then I

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post #13 of 16 (permalink) Old 09-08-2019, 04:45 PM
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There were two versions of the Big Brake kit back in the Boss 302 Trans Am days.....
One was based upon the 1967 12" T-bird rotor, which until recently, was the most massive
rotor to ever grace a Ford car. This setup for Trans Am had a unique bracket similar to the
65/67 Mustang caliper bracket and used the big car Kelsey Hayes calipers.
The other Big Brake setup used the same big car calipers, and '68 LTD rotors (Raybestos 6008),
which are around 11.5" diameter and also quite wide at over 1 inch. These also had unique
caliper brackets..... which were not the same as the T-bird derived big brakes.

This latter kit I have on both my '68 and my '66.

Street or Track has a modern day version of the kit because these days to come up with the
various vintage parts to copy the original B302 kit is a difficult and time-consuming task.

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post #14 of 16 (permalink) Old 09-08-2019, 06:02 PM
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Quote:
Originally Posted by GT289 View Post
There were two versions of the Big Brake kit back in the Boss 302 Trans Am days.....
One was based upon the 1967 12" T-bird rotor, which until recently, was the most massive
rotor to ever grace a Ford car. This setup for Trans Am had a unique bracket similar to the
65/67 Mustang caliper bracket and used the big car Kelsey Hayes calipers.
The other Big Brake setup used the same big car calipers, and '68 LTD rotors (Raybestos 6008),
which are around 11.5" diameter and also quite wide at over 1 inch. These also had unique
caliper brackets..... which were not the same as the T-bird derived big brakes.

This latter kit I have on both my '68 and my '66.

Street or Track has a modern day version of the kit because these days to come up with the
various vintage parts to copy the original B302 kit is a difficult and time-consuming task.

ex-Global West GM
1991-1995
I actually have a complete 67 set up, spindle and all. The rotors, calipers and pads appear to be like new, maybe only a couple hundred miles on them. I only have them because I ran across a screaming good deal, around $125 for the pair. So if I ever did this swap, exactly which or who's brackets would I need for the early stile 12"x1.25" rotors? I believe the caliper mounting threads need to be drilled out and some machining done to the calipers themselves? I'll probably never do it but curious.

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post #15 of 16 (permalink) Old 09-08-2019, 09:36 PM
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Never done the one that uses the T-bird rotors. Had the unique brackets for it but sold all that
stuff to another racer years ago.
Supposed to be the same big car KH calipers. I think the rotors were 5 on 5 ? I never
looked into it in depth after the deal with the rotor pattern surfaced.

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