I purchased mine 2-3 years ago after calling Centric to confirm that they were discs only, no integral hub. I believe I ordered mine from Summit Racing. Maybe call Centric like I did or call Summit Racing and see if you can get someone to go open a box.
Steve
I just searched eBay for separate rotors. If you study the listings, some of them will mention it is a hub and rotor combination. But many depict a separate rotor with no details in the auction
I sent messages to four sellers asking if they could confirm that the photo of a single rotor matches what they will supply and they have all replied they have all the information available listed in the auction.
Doubtful if any of them are separate rotors.
Larry
Here's a nice hub if you are going in deep. Just FYIing it to you
Here's a set of original rotors.
I purchased a set of those Porsche discs from Larry before going this route. The Porsche discs are an aluminum hat that he has machined to fit the Pantera hub, bolted to the cast rotor with maybe 6 5/16" bolts if I remember correctly. The set I received were machined so bad that they were not useable. I sent them back to him and explained the situation. He wanted to send me another set, but I've been disappointed enough by vendors to have learned my lesson. Then I called Centric and went the Mustang way. Maybe as you said you can cut the center out and machine down to the 7.75mm thickness and use washers behind the hats. Thats what needs to be done on the Wilwood hats. That said look into a set of Wilwood hats and rotors. Scott (SACC) should be able to help with that.
Steve
Yet another interesting one.
You might also read this thread from earlier this year
I'm not surprised there was a switch. This seems to be continuous across the industry. It is a 65-67 Mustang front rotor and has been one piece with the hub for four or five years WITHOUT a part number change or even a notation. Been there, done that.
Considering that fact, personally I am in the group that says if "we" are going to screw around with making a rotor for the rear, make it vented and so it mounts over the wheel hub so it is simple to remove to have resurfaced without tearing the rear assemblies apart.
@tsolo bursting bubbles….. I would have thought the Porsche disc would be the hot ticket… price wise it’s going to be a tossup between Porsche and Mustang… machine shop time will compensate.. LOL..
do you have any pics of the Porsche setup?
@panteradoug. I think you are absolutely right… 65/66 mustang front brakes are ALL now one piece… A handful of foundries in China and the difference in price is probably the amount of carbon added ..
just nobody changed the pictures.. I called centric and she said “it’s just the disc! No hub” I guess she was just looking at the same pictures as I did !
trust me, I was sending a few e-mails about making connections to cast the discs… But it’s quite an undertaking.. and then, the next question is how many should be made…? And some liability question is coming up as well…
Hmmmmmmmmmmmmm🤨
Larry they were ordered from Amazon in 2019.
One of my client was and may still be the US Supply Chain Manager for Centric. I'm going to call him tonight or tomorrow and see if there is a way to get an order of the correctly machined and dimensioned rotors. I'm a bit surprised that this is such a crazy thread, but since there are numerous threads just like this over the years maybe we can get something done here. I will report back shortly.
I don’t have a picture that shows the Porsche rotor by itself but I did find one with it mounted on my car. Of course I didn’t find the problem until I had both sides fully installed and tried to spin the hubs.
The problem was runout. The machining on the hats was very bad which caused excessive runout. I think he sources these from somewhere and then modifies the hat. I think he reduces the height, opens up the hub diameter, and redrills the stud holes, from what I could tell and remember from looking at them. I was also concerned about the limited number of bolts holding the hat to the rotor.
This is just my personal experience.
Steve
@tomsealbeach that would be fantastic…
this brake disc issue is around for a long time…. And 99% of the time it seems like it just fizzled out … in defeat.
@tsolo yes… that does sound funky, and it would concern me, too!!!
and there goes another Hmmmmmmmm
@LeMans850i posted:@tomsealbeach that would be fantastic…
this brake disc issue is around for a long time…. And 99% of the time it seems like it just fizzled out … in defeat.
Here's what I think the problem is, the Pantera numbers are already small, but at any one time there might be 10-20 owners that need replacement rotors. A company like Centric is owned by another parent company called APC Automotive Technologies, I recall StopTech was another company under that umbrella. APC filed bankruptcy in mid 2020 (maybe because of pandemic related issues but that was just the start of the pandemic). Taking on a specialty project for a production run of 50 or 100 rotors at a $50-100 retail price isn't a big project to these companies and thats why we are seeing these problems. Although, a production run might make sense if this part is an identical part match and cross fit to a Mustang rotor for 68-69 cars. Does anyone know which cars rotors are an identical match? Mustang, Cougar, Maverick etc? I'm just thinking forward on the arguments Mike Drew had to deal with when he made the deal with Centric to do a limited run.
After a long hot bath, here is what I come up with:
the 66 Mustang rotor/hub combination I just got, use it as the base…
1- machine the center to 81.9mm
2- machine the mounting flange to 9.2mm thickness which should make the disc 60.1mm high ( remove from wheel side)
3- machine disc to 282mm OD
4- machine bolt holes to 16.95
5- balance
6- water jet shim to offset caliper additional 1.5mm (my car had two shims on each side to bring the caliper to car center) because the disc is 1.5 mm per side further in I think we can live with that
I do not know if the flat spot on the head of the stud has something to bite on so it cannot turn. If there is nothing there could be a small recessed machined on the inside - one millimeter would do. if that’s the case… Have to go through the numbers again! Height increases to 61.1mm and caliper shim to 2.5mm
this way, we have full flange thickness, we have the proper diameter hole to center the disk on the hub, no washes needed under the studs…
If we can find a machine shop that could make the prototype and then maybe make a run of 50 .. or more??! It should become quite efficient doing same step on all and then switch for the next step on all and so on…
was my bath too hot 🥵???
Wow. What an amazing amount of machining and money just to adapt thin vented rotors.
some Willwood calipers can be widened with a spacer, which would allow the use of the thicker vented rotors used on the later mustangs.
cooling improves with venting, and also improves the thicker the rotor.
My point being, if you’re going to go to all this trouble, why not do it with a thicker and better rotor?
Or, if you choose, or have to stay with the thin rotor for your calipers, you can make this considerably simpler by just buying two of the separate rotors in the screen capture I posted earlier in this thread….. however they are also also thin, and thus not the ideal choice
Larry
I properly could go a couple mm thicker on the rotor but it would be a good fix just for me.. I was looking if there is a possibility to get a solution for everyone with original brakes (and wheels)! I’m not racing the car… just some spirited driving…
the work to the 66 discs reads like it’s a lot but it really isn’t..
once you did the prototype it would be pretty fast…
deck the flange (to the wheel) to the correct total height
machine center hole
OD of disc
5 hole (other thread says they already fit to press studs in)
balance (not sure about that… didn’t see any balance marks on new discs)
@lf-tp2511 posted:Wow. What an amazing amount of machining and money just to adapt thin vented rotors.
some Willwood calipers can be widened with a spacer, which would allow the use of the thicker vented rotors used on the later mustangs.
cooling improves with venting, and also improves the thicker the rotor.
My point being, if you’re going to go to all this trouble, why not do it with a thicker and better rotor?
Or, if you choose, or have to stay with the thin rotor for your calipers, you can make this considerably simpler by just buying two of the separate rotors in the screen capture I posted earlier in this thread….. however they are also also thin, and thus not the ideal choice
Larry
It is a lot to go through for sure! After seeing your response above I went back into a a few emails I had with the company that is the customer support to Centric and StopTech. At the time a manager was really helpful and gave me an email with this comment in it:
"Preemptively speaking we seem to be able to produce the slotted rotors. This would require an order of 6 sets of rotors (total of 12 altogether). I do not have a cost yet, I am trying to figure that out now."
When he said 12 rotors I said I'll just go with the non-slotted rotor because I didn't need 12. But he also mentioned that he can also make rotors that are not "static part numbers"! This must be how Mike Drew got his original batch made.
I have this guys phone number and some past correspondence with him. He was great so I will reach out to him on Monday on regular business house and see if we can get different dimensions made.
Well, that would be the ticket!!
Once there is a price on it let’s get an idea how many should be made…
send him an original rotor and make it 21mm thick and vented.. right!!
anyone who is interested PLEASE pipe up on this thread!
