Another brake caliper to identify

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Author Topic: Another brake caliper to identify  (Read 25681 times)

Offline 1965 fastback

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Another brake caliper to identify
« on: April 18, 2021, 09:53:07 am »
Good morning,

I'm looking at a set of rotors and calipers taken from a 65 Mustang v8. The owner can't tell me where the calipers came from as they were on the car when purchased and used for many years until upgraded recently. The owner thought they may be from a falcon? The owner believed the spindles they were attached to was original mustang but I don't have a photo of those spindles to confirm. If anyone can help identify these, it would be much appreciated. I obviously want them to bolt up to a standard v8 mustang spindle. I know many have upgraded their drums to discs using XY rotors and Commodore calipers (VP) mounted to a bracket Mustangs of Melbourne were producing for many years so it is possible this may be that set up also.

Thanks
Tony

Offline AussiePhil

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Re: Another brake caliper to identify
« Reply #1 on: April 18, 2021, 12:01:32 pm »
Hey Tony,
I can't tell you what they're off, Try Dr Google!
But Girlock calipers are very good calipers, I'd look at getting them rebuilt!
Repco, etc. have a catalogue of images of pads that may help!
You may be able to match up the bearing part numbers on the rotors to identify them as well as diameters, heights etc.
Other than that fit Wilwood dynapro calipers and rotors, it's a reasonably easy job, but you my have to match the bearings to your axle stubs, something I had to do!
Cheers Phil.
« Last Edit: April 18, 2021, 12:03:11 pm by AussiePhil »
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline AussiePhil

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Re: Another brake caliper to identify
« Reply #2 on: April 18, 2021, 12:18:46 pm »
« Last Edit: April 18, 2021, 12:27:46 pm by AussiePhil »
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline 1965 fastback

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Re: Another brake caliper to identify
« Reply #3 on: April 18, 2021, 04:13:11 pm »
Thanks Phil. I have googled and can confirm they are from an XE, XF, XG Falcon.

My next question is whether these had to be bolted to a spindle of the same era? and therefore incorrect for early Mustangs.

Anyone a brake expert in this area? I believe this is why come upgrades have included Commodore calipers bolted to a special bracket that sits on the hub before the spindle? If anyone can confirm any of this stuff, it would be much appreciated as I don't want to purchase calipers/rotors that won't suit.

If anyone knows about the Commodore caliper set up and has the right bracket they have discarded I would be interested in purchasing it.

Regards
Tony

Offline Bad01

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Re: Another brake caliper to identify
« Reply #4 on: June 01, 2021, 09:25:35 pm »
Commodore calipers similar but not necessarily better .
It all goes on piston size compared to master cylinder bore size .
Applied pressure versus actual braking  pressure and distance of brake pedal - hydraulic advantage .
Falcon calipers are robust but I got no idea idea what you mean by spindle .

Offline AussiePhil

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Re: Another brake caliper to identify
« Reply #5 on: June 02, 2021, 05:37:35 pm »
Thanks Phil. I have googled and can confirm they are from an XE, XF, XG Falcon.

My next question is whether these had to be bolted to a spindle of the same era? and therefore incorrect for early Mustangs.

Anyone a brake expert in this area? I believe this is why come upgrades have included Commodore calipers bolted to a special bracket that sits on the hub before the spindle? If anyone can confirm any of this stuff, it would be much appreciated as I don't want to purchase calipers/rotors that won't suit.

If anyone knows about the Commodore caliper set up and has the right bracket they have discarded I would be interested in purchasing it.

Regards
Tony

Sorry Tony for not getting back to you, I just didn't notice your reply.
As far as I know early 65, 66 are different to 67 and 68.
I thought that V8 and I6 have different spindles but I think the only difference is between drum and disc!

Now, I just read "differences in spindles" on Vintage Mustang Forum and I'm all confused!
Something about mid to late 68 were either disc or drum, but other years they fitted both drum and disc!
So it might be better saying "I don't know "

Cheers Phil.
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline unilec5544

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Re: Another brake caliper to identify
« Reply #6 on: June 02, 2021, 06:56:05 pm »
Unfortunately you cannot fit Falcon spindles to a 65 Mustang, if that is what you have. The falcon spindles are taller than early mustang and will effect steering and cause excess bump steer. your best bet is to contact Hopper stoppers, who I believe still sell the brackets for the conversion. Somewhere I have a members account of the process to convert to front disc brakes, which I will look for, if you decide to go this route.

Offline AussiePhil

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Re: Another brake caliper to identify
« Reply #7 on: June 03, 2021, 07:48:31 am »
Hey Tony,
I agree with unilec, give Hoppers Stoppers a ring, they can give you advice about ADR Approved calipers.
Another good supplier is Castlemaine Rod Shop.
They need to be dust booted and tested and Approved to pass critical inspection. (Engineers certification)
Anything you buy will use the three or four flange bolts on the spindle, (the reason for this is it's plainly simpler and cheaper that using the other and better spindle holes) it is critical that you chamfer the holes as directed to stop shearing off of the bolts under very heavy load, some brands get a bad reputation for this but you will find instructions were not followed!
If you fit bigger rotors and calipers you will have to fit 16" or larger wheels!
I've got Wilwood Dynapro calipers which are dust booted and ADR approved!
I also run a Hella UP28 vacuum pump with pressure switch as my engine is supercharged and has heavy cam.
Cheers Phil.
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!