This will take you to the main site where there is history, technical information and other information on these cars.
This takes you back to the main page of the forums.
This is the control panel to change your password, information and preferences on this message board.
Click here if your lost your password or need to register on this message board. You must be a registered user to post. Registration is free.
Search this board for information you need.
Click here to buy cool Squarebirds mechandise.
Click here to support For $20 annually receive 20mBytes webspace, a Squarebirds e-mail address and member's icon on the message board.
Old 08-14-2010, 09:25 PM
orwin's Avatar
orwin orwin is offline
Ford Man
Join Date: Jun 17 2008
Posts: 67
orwin is on a distinguished road
Default Disc Brake Rotors

I am converting to disc brakes and the "snout" on the rotors was 2.75". This was too large to fit in the Ford Ranger 14x6" wheels I have. There is an article referenced elsewhere in this forum:
which advises to turn the rotor snouts to 2.44" to correct this problem. The opening in the wheels is approx 2.5".

Now there is another article in this forum that suggests turning the snouts to fit very closely in the wheel opening.

The question is does the wheel centering rely at all on the snout or just from the centering of the lug nuts when they are tightened?

Am I OK with 2.44"? If I need to I will order new rotors and have them turned to 2.5" for a closer fit.

Simplyconnected advised that I could have avoided all this by getting a different conversion kit that used Mustang rotors but at this point I'd have to start all over.
John Orwin
1960 HT 430
Tbird Registry #1590
Reply With Quote
Old 08-14-2010, 10:24 PM
byersmtrco's Avatar
byersmtrco byersmtrco is offline
Join Date: Sep 28 2004
Posts: 1,646
byersmtrco is on a distinguished road

The lug nuts center the wheel. I'd just get wheels
that fit the hubs. I'm not sure about turning the hubs down.
My Mustang wheels (barely) slide over my frt hubs. Mine are after-market though.
John Byers
1960 Convertible (Orig owner)
Reply With Quote
Old 08-15-2010, 01:53 AM
simplyconnected's Avatar
simplyconnected simplyconnected is offline
Slow Typist
Join Date: May 26 2009
Posts: 7,561
simplyconnected is on a distinguished road

There is a big difference between Granada and Mustang rotors. They use different sized bearings and the snout sizes are vastly different.

Neither rotor centers the wheel on the snout. Neither did your OEM Thunderbird snouts on your original drums.

Aftermarket companies use either the Granada rotors or the Mustang rotors because they both use standard Ford 'five on 4-1/2" lug centers', which match your rear drums. They are also very available in every auto parts store across the USA.

True Granada wheels would fit your Granada rotors, but they are impossible to find, now. So, to accommodate more modern wheels, your snouts must be turned for a clearance fit, which is exactly what you have done. If you look closely at your original drums, those snouts are tapered, and are much smaller at the spindle nut than your new 2.44" size. My point is, there is still more metal left after turning, than your originals started with.

If you ever replace one of your Granada rotors, it will need to be turned, as well. Here is a Mustang retrofit reference PDF for you; it starts on page 17, WHEEL FIT: CLICK HERE

I put Granada spindles/rotors/calipers on my '55 Ford, and I turned the snouts (2.44") to clearance-fit my original 15" wheel centers. Caliper clearance on any 15" wheels is not an issue.

However, on my '59 Galaxie, I used Scarebird brackets on my original spindles with Mustang rotors. No machining is necessary, original drum bearings and seals fit the new rotors, and so do the dust caps. '59 Ford Car spindles share the exact part numbers with Squarebird's.

I have no preference using either the Granada setup, or the Scarebird. They both work fantastic. - Dave
My latest project:
CLICK HERE to see my custom hydraulic roller 390 FE build.

"We've got to pause and ask ourselves: How much clean air do we need?"
--Lee Iacocca
Reply With Quote
Old 08-15-2010, 04:31 PM
ncbird ncbird is offline
Join Date: Jan 5 2008
Posts: 390
ncbird is on a distinguished road
Default check your mail

Orwin check your private msgs...I sent you a msg about some versaille 14" wheels
NCbird on the Coast of NC
"Dads Bird" for my father
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 12:56 AM.

Driving, racing or working on cars can be hazardous. The procedures and advice on this website including the message board are opinion only. and its webmasters and contributors do not guarantee the correctness of the advice and procedures. The and its webmasters assume no liability for any damage, fines, punishment, injury or death resulting from following these procedures or advice. If you do not have the skills or tools to repair your car, please consult a professional. By using this site you agree to hold harmless the, its authors and its webmasters from any resulting claim and costs that may occur from using the information found on this site.

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Any submissions to this site and any post on this site becomes property of . The webmasters reserve the right to edit and modify any submissions to this site. All material on this is site is copyrighted by the Reproduction by any means other than for personal use is strictly prohibited. Permission to use material on this site can be obtained by contacting the webmasters. Copyright 2002-2016 by