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Brakes The Ultimate 4-lug/5-lug Brake Conversion/upgrade Thread

  • Thread starter Thread starter Mustang5L5
  • Start date Start date Nov 28, 2009
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Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,252
17,937
224
Massachusetts
Mar 1, 2021
#361
  • Mar 1, 2021
  • #361
They are better than fox calipers, but there are better options. I’d snag a set of 99-04 GT/v6 calipers off a different car after you get the spindles off the 94-95
 
Reactions: limp

Rdub6

So while I wait to figure out my rear end issues
5 Year Member
Dec 29, 2017
3,954
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Long Island, NY
Mar 1, 2021
#362
  • Mar 1, 2021
  • #362
I’m glad I started stockpiling my parts for this swap a few years ago.
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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Mar 2, 2021
#363
  • Mar 2, 2021
  • #363
They are still out there.... Pulled these out this am from a 95.. $80 out the door......
EDIT.. I looked at my final bill and it was around $70 total......
 

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Last edited: Mar 2, 2021
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Rdub6

So while I wait to figure out my rear end issues
5 Year Member
Dec 29, 2017
3,954
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Long Island, NY
Mar 2, 2021
#364
  • Mar 2, 2021
  • #364
limp said:
They are still out there.... Pulled these out this am from a 95.. $80 out the door......
EDIT.. I looked at my final bill and it was around $70 total......
Click to expand...
That’s a good score!
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,252
17,937
224
Massachusetts
Mar 2, 2021
#365
  • Mar 2, 2021
  • #365
That’s definitely a score.
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
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Mar 2, 2021
#366
  • Mar 2, 2021
  • #366
Mustang5L5 said:
They are better than fox calipers, but there are better options. I’d snag a set of 99-04 GT/v6 calipers off a different car after you get the spindles off the 94-95
Click to expand...
so tell me about these GT V6 calipers?? I have been looking online and I find a two piston caliper but I do not find anything specific Gt/V6.... What is better about this set up?? TY
 

Rdub6

So while I wait to figure out my rear end issues
5 Year Member
Dec 29, 2017
3,954
2,936
153
Long Island, NY
Mar 2, 2021
#367
  • Mar 2, 2021
  • #367
limp said:
so tell me about these GT V6 calipers?? I have been looking online and I find a two piston caliper but I do not find anything specific Gt/V6.... What is better about this set up?? TY
Click to expand...
They were standard on the Gt and v6. It’s basically the step in between stock and the cobra brakes, in terms of upgrading our foxes.
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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Mar 2, 2021
#368
  • Mar 2, 2021
  • #368
Rdub6 said:
They were standard on the Gt and v6. It’s basically the step in between stock and the cobra brakes, in terms of upgrading our foxes.
Click to expand...
Ok. So how do I tell the difference in them??
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,252
17,937
224
Massachusetts
Mar 2, 2021
#369
  • Mar 2, 2021
  • #369
Find any 99-04 V6 or GT at the wrecking yard and you’ll find them. They fit the smaller 10.9” rotor and look like this

cobra is the red caliper and GT/v6 is the natural finish csliper. Ignore the fact they are sitting on this rotor. The Gt/v6 caliper won’t work with 13” rotor



keep in mind, when these calipers sit a long time the Pistons can somewhat seize up. So make sure you test the Pistons in the yard. Press them in and see if they move easy.
 

limp

wrap a little cheese around it and its a done
5 Year Member
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Mar 2, 2021
#370
  • Mar 2, 2021
  • #370
Mustang5L5 said:
Find any 99-04 V6 or GT at the wrecking yard and you’ll find them. They fit the smaller 10.9” rotor and look like this

cobra is the red caliper and GT/v6 is the natural finish csliper. Ignore the fact they are sitting on this rotor. The Gt/v6 caliper won’t work with 13” rotor



keep in mind, when these calipers sit a long time the Pistons can somewhat seize up. So make sure you test the Pistons in the yard. Press them in and see if they move easy.
Click to expand...
Thanks for the pic... So these 99-04 GT brakes take a 10.9" rotor.. Are the base rotors the same size and are the base calipers two piston also?? Forgive me for over thinking this....
 

KRUISR

10 Year Member
Apr 16, 2015
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Mar 2, 2021
#371
  • Mar 2, 2021
  • #371
99-04 calipers and rotors are the same for both V6 and GT. Stock rotor is 10.9"
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,252
17,937
224
Massachusetts
Mar 3, 2021
#372
  • Mar 3, 2021
  • #372
94-04 GT's and V6's have the exact same brakes front to rear year to year. A 1999 GT will have the same spindles, same dust shields, same calipers, same brake lines, same rotors, etc.
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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Mar 3, 2021
#373
  • Mar 3, 2021
  • #373
Mustang5L5 said:
94-04 GT's and V6's have the exact same brakes front to rear year to year. A 1999 GT will have the same spindles, same dust shields, same calipers, same brake lines, same rotors, etc.
Click to expand...
You mean 99-04 correct?? Ok I got it now... V6 OR a GT..... What about a NON GT V8?? Were any 4 cylinders built those years??
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,252
17,937
224
Massachusetts
Mar 3, 2021
#374
  • Mar 3, 2021
  • #374
Well, for the calipers you are seeking, they come on the 99-04's. But my statement about all 94-04 GT and V6 sharing the same brakes applies within the same year. The 94-98 GT/V6 share the single piston 66mm caliper, and the 99-04's share the same 2-piston 44.5mm caliper.

All non-GT V8's use the cobra brake setup. Really, this is 98% cobras and the '01 Bullitt and '03-04 Mach 1. Those use the Cobra brakes with 13" front rotors and 11.65" rotors. These would certainly be a better brake setup, but I doubt you wil find one in a boneyard, especially with the brakes intact. However, the spindles are the same between the cobra and the V6. In other words, a 1999 Cobra and a 1999 V6 share the same spindles/hubs and dust shields.
 
Last edited: Mar 3, 2021
Reactions: General karthief

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
2,899
173
Florida
Mar 3, 2021
#375
  • Mar 3, 2021
  • #375
Mustang5L5 said:
Well, for the calipers you are seeking, they come on the 99-04's. But my statement about all 94-04 GT and V6 sharing the same brakes applies. The 94-98 GT/V6 share the single piston 66mm caliper, and the 99-04's share the same 2-piston 44.5mm caliper.

All non-GT V8's use the cobra brake setup. Really, this is 98% cobras and the '01 Bullitt and '03-04 Mach 1. Those use the Cobra brakes with 13" front rotors and 11.65" rotors. These would certainly be a better brake setup, but I doubt you wil find one in a boneyard, especially with the brakes intact. However, the spindles are the same between the cobra and the V6. In other words, a 1999 Cobra and a 1999 V6 share the same spindles/hubs and dust shields.
Click to expand...
Thanks for clarifying all of that... I am new to these cars and I want to make sure I get the right stuff..... I appreciate your patience with me..
 
K

Kevins89notch5.0

Founding Member
Founding Member
Jan 1, 2000
5,864
1
78
Mar 5, 2021
#376
  • Mar 5, 2021
  • #376
Mustang5L5 said:
For $35 each for 94 spindles Id be scooping up as many as I could. Selling for $200-300/pair on eBay
Click to expand...

I checked my local LKQ, and they list spindles with hubs as $26.50 plus a $8 core charge. I think I'll be checking their site a little more often. No not for the flip, just if other foxes find their way into my garage over the years to come.
 
Reactions: Mustang5L5

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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Apr 13, 2021
#377
  • Apr 13, 2021
  • #377
Sooo, a question about the 'caged" nuts that hold the hub to the spindle.... I read where those need to be replaced each time?? is this correct?

I was trying to find a set of these " caged nuts" and all of the pictures with this part does not look like what I took off these spindles?? Seems to be a metal cage around it and the replacement nuts do not have them??
 

KRUISR

10 Year Member
Apr 16, 2015
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Apr 13, 2021
#378
  • Apr 13, 2021
  • #378
I have reused them. Could also get a replacement that is usually a type of locking nut.


 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
2,899
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Florida
Apr 13, 2021
#379
  • Apr 13, 2021
  • #379
KRUISR said:
I have reused them. Could also get a replacement that is usually a type of locking nut.


Click to expand...
OK, this is the picture I keep seeing for a replacement... Ford OEM pics are the same as above too... Whats the schnizzle on reusing them?
 

KRUISR

10 Year Member
Apr 16, 2015
1,816
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Apr 13, 2021
#380
  • Apr 13, 2021
  • #380
Just like with nylock nuts, the locking mechanism will slowly over time loose the friction that creates the lock. The caged nut does a similar locking function. But really when you are putting well over 100 ft lbs of torque to tighten, I don't think the locking function is really needed. If worried, re-torque it (check it) every couple months.
 
Reactions: limp
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