"No feedback brakes" go from nothing to full lock

dICKj said

OK, I will first make sure the push rod is making contact when I move the pedal. Then I will make sure that there isn't a vacuum leak anywhere else. If no luck, then I will remove the booster and go manual brakes. What size piston bore do I need in the master cylinder for manual brakes. Anybody got a part number for Dorman, O'Reilly, or Auto Zone?

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Smaller would give you More Pedal modulation, aka travel, a larger bore kinda squirts it all with a shove of the foot. Alot of us dig the Smaller Bore. Dr Diff has a Sleeved 90s Dakota Master, in Aluminum... that's where I'm going next... sorry, no local P/ns... Rock Auto has ALOT of the same stuff You can get local, so a quick trip to their web can get Ya some #s to cross Reference