Master Cylinder 48 Dodge

[Robert Horne]

Have been working to add a little more modern master cylinder. It is working good. The MC is a rebuilt Mustang II, $16 from Advance Auto. I left the original MC in place, and added a longer push rod through it.

[Don Coatney]

Bob;

What I have learned is you will need the smallest bore (5/8" for a Mustang) in your replacement master cylinder or else the required pedal pressure will be more than your legs can produce.

[Robert Horne]

Thanks Don. I will give it a test drive soon, see if I will be happy with it.

[YukonJack]

What year Mustang is the master cylinder from? What are you using for the longer push rod? Saw the same swap in a magazine years ago, but I can't find it now.

[Robert Horne]

The MC is a 1975 Mustang II. I used the original push rod from the 48, with an addition hollow rod from something in my workshop. The L shaped bracket is just a piece of angle iron. I drilled a hole into the original 48 bracket , added a couple of washers for spacers.