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Front Edge of hub to brake bracket 2.321"


Front Edge of hub to main bracket. 1.894"


Front Edge of hub to inside edge of hub. 1.99"


Caliper Bracket inside edge rubbing


Thanks






 

MS wrote:

I do not have dimensions to compare to yours. If you bolted the rotor to the hub and the caliper bracket to the MS bracket, how much interference would you have? Are you using A12 and A13 bearings?

The only variable is I can imagine is the hub. I have never used that hub, but I would think it would be same as 70 Mustang drum hubs, which fit perfectly.

Your rotor is too far inboard, right? Did you buy a new rotor, or are you using the original from the 2006 GT. Original caliper and bracket taken directly off the donor car?

I have more than an extra washers length interference. I added another washer on top of the ones supplied in the kit and it spaces the rotor out just about where the inside edge of caliper bracket should be (the bracket got worn down by the rotor as seen in last picture).

I am using brand new A12 and A13 bearings and races.

That is correct, the rotor is in to far. The rotors, calipers, etc were all taken off a wrecked 06 GT mustang by me and all parts are FOMOCO.

Do you by chance have a 65-73 Mustang that you can measure the length of to compare to mine?

Do you have another caliper bracket you can try?  I had a similar problem when I installed my MS brackets for the Cobra brake conversion on my 65- the rotor was hitting the caliper bracket. I was using all new parts and double checked the hubs, rotors, and all measurements and all looked good. Out of desperation/exasperation, I bolted up a different caliper bracket that I had laying around and all worked perfectly.  Both caliper brackets- the one that hit and the one that worked perfectly- were factory brackets, so there must be a small variance even among the factory stuff.

Chaplin wrote:

Do you have another caliper bracket you can try? I had a similar problem when I installed my MS brackets for the Cobra brake conversion on my 65- the rotor was hitting the caliper bracket. I was using all new parts and double checked the hubs, rotors, and all measurements and all looked good. Out of desperation/exasperation, I bolted up a different caliper bracket that I had laying around and all worked perfectly. Both caliper brackets- the one that hit and the one that worked perfectly- were factory brackets, so there must be a small variance even among the factory stuff.

Thanks for the reply. I did try the caliper bracket off the other side and rotor to double check it with no luck. I assume the rotor should be centered in the bracket opening so I'm at least a 1/4" off one direction.

The supplied bolt that bolts the MS spindel bracket to the MS caliper bracket is also just barely clearing the rotor. Maybe a few thousands of an inch, is this normal?

Last edited by cj428mach (12/10/2017 6:30 PM)

It doesn't appear to be a hub issue.

MS wrote:

The bolts will be close, but not hit.
Did you install new bearing races in the hubs?
If you are certain everything is bolted up tight, as designed, then the hubs must be different. Per my design, your bracket will not be perfectly centered about the rotor, but will be where it cannot rub.

Another thought. Are you using factory MustangII spindles or V8 65-73 spindles?

Yes, new bearing races and hubs.

I am using Mustang II spindles. It looks like I just need to make some spacers.

rpm wrote:

Ya, I'd think it was the mixing of the MII spindles and 65-73 hubs for the interference.

I believe thats what the kit was designed for.

MS wrote:

 
Careful when you start thinking again...

He has the GT2008-FT-MII kit designed for MII spindles. The 65-73 Hubs fit MII spindles if MII bearings are used.

DOH! Never mind then.

Just an observation from your apparent measurements.  Placing the hub on a flat plane and measuring up to the rotor mounting surface is a good comparison, but should always be made from the back of the inner bearing, not the back of the hub.  I cannot tell from your pictures of that measurement if the bearing is in place or not.

Looks like if everything is bolted up tight, then an additional hardened solid washer type shim would do the trick.
----- Not more than 0.200" thick total.
----- Be sure the Grade 8,  1/2" attaching bolt that mounts Bracket A and Bracket B together has at least two to three threads protruding from the nut. 
----- Use red Loctite.

Please report results when you get it completed.

Good lookin' '37, CJ.  My favorite Ford year.  My bro-in-law just found a pretty nice '40 Cp.  Very happy for him butteye (TS) prefer the '37.

BB
 

What a great looking car!