Manual Brake Pushrod issue

Got a "new" Comet last summer and have off-and-on been wrenching on the 'ol girl.
Replaced a BUNCH of stuff (since this car had been sitting in a tow yard for quite some time) and finally got around to the master cylinder.

Got around to that, installed the new cylinder, and now my brake pedal is too high.

What is the proper length for the brake rod? Where can I buy one? I'd prefer to stay away from adjustable stuff (my luck with adjustable stuff is legendarily bad,) if possible.

 

I had the same problem , the adjustable works great , not hard to do , although I had to remove the master cylinder to get the old rod out .

 

New rod should have come w/ MC! If that one is to high, ur most likely going to have to modify one. I recently replaced my MC and tried a adj. Stang rod; it did not work out for me. The pedal was lower but did not have enough travel to provide stopping efficiency of the non-modified rod, and wud not activate brake light switch.
Others, have had success modifying stock rods. Dave Boyer on the forum said the rod he modified works. IIRC the stock rod is abt 6 1/2 " - I believe I have a spare in the garage I can check tomorrow...

 

Which adjustable did you use?

 

I seem to recall master cylinders coming from the parts store with (2) different rods. Did yours have (2)? If not....go back to the store and look thru other master cylinder boxes and see if there are (2) in them.

 

The one I installed last year came w/ only one rod. I it came from Rock Auto #MC36440.

 

They sent you a M/C with the wrong rod. The '70-'73 has a shorter rod than '74-'77.
I've never tried the adjustable, but have heard that they work well. I don't know the exact length of the rod for the early Mavericks.

 

I've dealt with this twice. First time I cut 3/8" out of the rod and welded it back together. Second time I made 3/8" spacers to move the master cylinder away from the firewall.

 

This is best solution... Can loosen MC and measure gap when pedal is at comfortable height, fab spacer, done... Well almost, may possibly need longer MC mount studs...

 

I used 1974 mc with manual disc brakes on my 72 and adjustable rod from summit Scott drake No problem at all , it's nice because it's Easy to get the right height , if you cut and weld and if your off a little you will have to do it again , if you use the adjustable one make sure you tighten the jam nuts , and make sure there are enough threads in the coupler . About 44.00 for the rod

 

That's certainly an option, but I think the "best solution" is a rod of the correct length.

 

Yeah, if at all possible, I'd like at least the proper measurements. I want to have this as close to stock as possible (as my previous Comet was all stock, and the brake pedal was just fine.) The current one is essentially undriveable with the pedal in it's current position.

(I only got one rod with the master cylinder, and that was from Autozone. The master fit just fine, but as you can see below, the rod sure didn't. )

 

That's true I tried to find the correct length push rod but wasn't able to , every one I found for some reason was to long , so at that point I just went with the adjustable , I'm sure there out there but I just didn't have any luck , good news is that there are ways to fix it ,

 

Seems various MC have slightly different depth which of course requires different length rods... I'm not sure if there is a definate this or that one...

I cut mine, but if I had to do it again I'd go with the spacer...

 

I am going w/ a spacer. The adj rod I had did not have enough thread once the rod was set to the length where it lowered the pedal height to comfortable level. As mentioned, it did not have enough travel to stop the car effectively and wud not activate the brake switch. I have a spacer "about 3/16" behind the firewall" looks like factory spacer - plan to add another 3/16 alum spacer and see how that works. Don't think i want to mod the rod...