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good replacement master cylinder
#1
Hey everyone I think I need to replace my master cylinder,I checked the master cylinder today n it was really low on fluid. The pedal was going down to the floor, I had to pump it to get it to stop. I bleed the brakes before n it seemed to work alot better. My friend thinks the master cylinder is going since my brakes haven't been that great. Do you guys recommend a good master cylinder? I was looking into wilwood I saw they offer 7/8 or 1 inch which one do I get ? I have disc brakes in the front and drum rear.
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#2
Most of your local part stores can order one for you. I bought mine from summit. They will want your core.

Oh and it comes from Cardone
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#3
I've always had good experiences with NAPA. Good quality at a good price (for the most part!)

[Image: 1673if.png]
50 F1
73 Mach 1
86 F150
96 F150
2014 F150
Always looking
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#4
Master cylinder size depends on age of car it changes around mid 72 . I wouldn't spend the money on a wilwood I would rather spend it getting my own cylinder sleeved in stainless then it will never need rebuilt again this is great for cars that aren't daily drivers. I think there are companies in the US like white post restorations who will do this for you they also do calipers and wheel cylinders. ps check its definetly the mc and not a wheel cylinder.
oops just looked up white post they don't seem to get a good review but I'm sure there are others who could do it.
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#5
Take care about the size of the primary and secondary connection you need, I made a mistake about that, and now I have a master cylinder I can keep in my garage for decoration Sad
I ordered the DORMAN M36445 and unfortunatly I can't use it.
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#6
Is the M/C visibly leaking?

If not you may want to track down where you are losing fluid from before arbitrarily replacing it.

The drum brake wheel cylinders might be a good place to start.

73 conv. 460, D0VE large valve heads, Performer RPM manifold, Voodoo 227/233 cam, Holley 950 HP carb, C6 trans, 3.25 trak-loc.
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#7
It's wet behind the master cylinder
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#8
So you have a leak in the master cylinder. You can or change it completly or if the body is in good condition buy a master cylinder repair kit.
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#9
manu64;159813 Wrote:Take care about the size of the primary and secondary connection you need, I made a mistake about that, and now I have a master cylinder I can keep in my garage for decoration Sad
I ordered the DORMAN M36445 and unfortunatly I can't use it.
Excellent advice given there!

I have ordered two of them now from local parts stores and BOTH were incorrect. Very frustrating. Mine has a larger connection on the bowl nearest the front of the car, and a smaller connection on the bowl nearest the firewall. Both master cylinders I have gotten from local parts stores had the same size connections.

Not to totally hi-jack, but I am sure open to suggestions on who can actually get me the right one. I need one for a 73, 351C 2v, power brakes with front disks and rear drums. If anyone has one, please PM me.

To the OP, be careful of this and make sure you check before you give up your core. Thankfully, I still have my core and I'm not giving it up until I get the right one.
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#10
I believe the ones with the same size connections are for drum brakes.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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