will manual disk/drum brake master cylinder be ok on power brakes challenger?

[smos001]

ok,
parts store sold me wrong Master Cylinder. It is the Cardone 10-1326M  Manual Disk/Drum MC. I have Power Disk/Drum need the 10-1326.
It is on the car already. I hate to rush to take it off. Is there a big difference.

 Cardone Tech support says, "No real difference. Its just a grommet that is different that comes with the M"... really? pictures look different?

Should I rush to change it? I hate to bleed brakes again. will it be dangerous or cause a some sort of damage?


If  I decide to change it t the correct MC can I just bench bleed the MC, do I have to bleed the brakes again?

Thanks for all the help,

[Chryco Psycho]

to my knowledge the rear piston has a groove for an O ring to retain the brake pushrod , the rest should be the same

[smos001]

Thanks,
Now I am second guessing myself. Maybe I did put the right Master Cylinder on the car. The pictures on the websites of the power brakes MC have  different caps then mine. But that might be just the picture.
So far the brakes stop the car.  :  )

[Skunkworks Challenger]

Not sure about E-body but normally manual brakes use a smaller piston in the master cylinder. 

[ChallengerHK]

   That's exactly what I was thinking.

[Chryco Psycho]

true so the pedal will travel a bit further but in this case it is the same part # with just the M designation

[Strawdawg]

to my knowledge the rear piston has a groove for an O ring to retain the brake pushrod , the rest should be the same

This is the important difference.  If the push-rod is not retained in the back of the rear piston, it is possible for it to come out of the piston which then gives you no brakes. 

[Chryco Psycho]

agreed , the pedal can be lifted faster than the piston can return & in theory could drop out of the rear of the master although general the brake light switch will limit upward travel so the rod cannot drop out entirely

[anlauto]

Power disc/drum brakes use the same master as manual disc/drum brakes with un-equal reservoirs.

The drum/drum master has equal reservoirs.

The difference is when you switch from drum/drum to disc/drum because a larger reservoir is needed to run the front disc brakes.

The rod will never fall out.

[smos001]

What seems interesting is the Master Cylinder that I have has 2 large reservoirs.  and it matches the picture of a 10-1326M on all the parts websites. all the sites  says that 10-1326/M  fits disk brakes? I would expect one small reservoir and one big reservoir for Disk/drums?
The car is at the shop getting the engine out (I decided to rebuild the engine...Long story). I will run over and check the reservoirs again. But I am pretty sure they were the same size.

I would hate to pull the Master Cylinder off and bleed the brakes... I hate bleeding brakes!
Thanks,

[smos001]

Just got an email back from tech support from Cardone. I asked if the two symmetrical sized reservoir is the correct one for a disc/drum car. They says its just a different casting? and it will work.
....ok