71 C10 Brake Master Cylinder / Booster Questions

[SCOTI]

Originally Posted by DD1

Thanks, Jimmy. What's interesting is that Autozone lists both MC's as being Disc/Drum. Of course their listing could be incorrect, especially considering they sent me the wrong MC in the right box.

I'll keep the new one as I have front disc brakes.

Thanks for the help.

Either can/will work. The one w/the smaller chamber just needs to be checked on more often over the miles. That being said, you need to know what the bore is for each. Larger vs. smaller bore impacts line pressure.

Manual brake master cylinders typically have smaller bores which yield greater line pressure since there's no additional leverage. Power brake master cylinders have different bores to allow tuning the pedal travel/feel when braking. Sometimes it takes some sorting to get what you like.

[DD1]

Originally Posted by SCOTI

Either can/will work. The one w/the smaller chamber just needs to be checked on more often over the miles. That being said, you need to know what the bore is for each. Larger vs. smaller bore impacts line pressure.

Manual brake master cylinders typically have smaller bores which yield greater line pressure since there's no additional leverage. Power brake master cylinders have different bores to allow tuning the pedal travel/feel when braking. Sometimes it takes some sorting to get what you like.

Thanks for the information. I appreciate it.