Cleaning out shed and getting off couch, which do I need?

[PQTIII]

I 'm doing the 5 lug conv on my 91. Not sure what I have here or what else I need. Will one of this MC or boosters work with the conv with rear dics? I can't find any numbers anywhere to cross reference. How can I figure out what I have?

Thanks
pt

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[Mustang5L5]

No


Bottom one looks like a stock 87-93 mustang mc and booster

Top one is a 79-86 mc and booster. Tough to say which one.


Neither one will work woth your rear disk setup...which I assume is sn95 by the caliper show

 

[PQTIII]

What year booster and MC do I need? I think it call for an adj pressure valve too, right?

Thanks
pt

 

[Mustang5L5]

Need more info pn what brakes you are using to recommend a mc and booster

What front brakes and what rear brakes?

 

[PQTIII]

The only number I have right now is off of the rear caliper:vfcc2386-0 I'll having to take off the front wheels tomorrow.

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[Mustang5L5]

Well, that is a 94-04 mustang rear caliper

 

[PQTIII]

Kind of what I found too. I know that I pulled the booster/MC of the car when I pulled the rear and the brakes. Nots sure which one out of the 4 sets that I have. Where are the part numbers on the booster and MC? I just found another set....

Thanks
pt

 

[Mustang5L5]

P/N I don't know

Booster is physically bigger than the two boosters you posted earlier. Larger in overall diameter

The MC looks like the bottom MC posted above, but only has two ports and lasts a threaded port on the underside of the MC like that one

 

[PQTIII]

I found the MC (bottom one in picture) that I pulled off of the car that had the rear disc brakes. The bottom port is plugged and the MC is different. Bigger and also made out of metal instead of aluminum. The boosters look the same though. I drove the car for two years. Before I sold it, I took the 5lug conv and brakes off.

Will this setup work for my currrent project?

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[Mustang5L5]

That's also a stock MC that someone rigged to work with 2 ports. Really not the right way to do it and i wouldn't recommend using that method.

Booster is stock too

 

[PQTIII]

Do I just go buy a 94 MC and booster? Or what date range will work? Is that all I need?

 

[Mustang5L5]

Here's the "guideline" i say that because you can adjust slightly from here based on personal preference.


Rear calipers
94-04 SN95 (ANY)

Front calipers

94-98 GT/V6 single piston 66mm cast iron - 94/95 GT/V6 Master cylinder 1 1/16"

99-04 GT/V6 2-piston aluminum PBRs (10.8") - 1993 Cobra Master cylinder 1.0"

94-98 Cobra 2-piston 38mmx2 (13") - 1994-1994 Cobra 15/16"

99-04 Cobra 2-piston 40.5mm x2 (13") - 94/95 Cobra 15/16" OR 93 Cobra 1.0"


Booster:
1993 Cobra, 1994-1995 (ANY), or 99-04 V6 booster

 

[PQTIII]

The top valve came off stock fox and bottom came off my 91 that I had 94/95 5 lug and brakes. It's been too long seen I took them off, so I don't remember where the lines go. What brake lines go where on the bottom valve?

Thanks
pt

 

[Mustang5L5]

Top two go to the mc. Rear port of mc to rear top port of prop valve. Front port to front of valve.

The front port on the mc is rear brakes, so the front port on the bottom is the rears.

The port on the left and the rear bottom port next to ot are front brakes. Port at rear is drivers side...port on bottom is pass.

 

[PQTIII]

This correct?

Thanks
pt

 

[Mustang5L5]

Yes

 

[PQTIII]

I think I messed up the picture for the linelock after I re-read your post. Should it go on the back port ???

 

[oldfox]

If you order the 93 cobra booster from the zone or Advance you will get the 94-95 booster with the
mounting bolts changed to match the holes in the Fox firewall.
Or at least that's what I got.

 

[Mustang5L5]

I think I messed up the picture for the linelock after I re-read your post. Should it go on the back port ???

Linelocks I do not know that well. If you aren't sure, i'd start a new thread.

I always thought they went to the back brakes, so you can turn the lock on and it prevents pressure to the rear brakes...allowing you and your foot to modulate the front brakes