Assistance needed. Brake Master cylinder swap

[dabruin15]

I just bought a 67 m715. The brake master cylinder is bad. Are there any direct upgrades that I can install? There is no drivetrain I am replacing everything.

 

[Flingarrows]

There is a bunch of info at the M715zone. Here is on e thread:
Dual Master Help - Page 2 - M715 Zone

 

[Barrman]

The stock master is easily rebuilt with cheap parts. Replacement stock masters are pretty cheap as well. However, if you are going to be doing anything besides shows, parades and just driving slow on weekends. I would suggest a dual line master as mentioned in the thread George linked to above. It might only stop a little bit better every time, but at least it will stop if you loose a line or wheel cylinder compared to nothing with the stock master.

 

[bcowanwheels]

I have a "kit" for this upgrade and its not the "car" m/c

 

[Jbush]

Dual brake Master Cylinde Kit

I have a M715 and want to upgrade to dual master. Is there a complete kit for the conversion?

 

[bcowanwheels]

i have complete kits for this . and its 1 ton rated......

 

[Jbush]

Would it fit the 715?

 

[bcowanwheels]

its made for the m715,m725 etc.

 

[lstmate]

I have done the upgrade mentioned on the M715zone discussion page. It is a direct bolt on dual master cylinder. It works great!!! I also did the wheel cylinder upgrade discussed there too. I paid $12.99 per wheel cylinder and just a small backing plate modification and they bolt right on and work great!! The wheel cylinders for the M715 run around $54.00 when I was looking. I think the master cylinder was $17.00 at O'rielly. Of course you need to split the front and back lines. I probably spent less than $100-$130 for everything including all lines. The zone has a very good step by step instructions on how to do it.

 

[lstmate]

One more thought... Use Silicone brake fluid and not the DOT3. If it sits you will not have to worry about moisture in the wheel cylinders corroding them up.

 

[bcowanwheels]

X2 on silicone brake fluid

 

[Jbush]

How much?

 

[bcowanwheels]

best to call me.
1-423-384-8938