when you get brake fluid leaking from the bottom of the brake master cylinder, is that usally a gasket needed to be replaced? or does the whole master cyl need to be replaced? i have 150k on my chassis and it leaks... thanks

 

My best guess is that it could be one of the fittings, or one of the rubber grommits where the plastic brake fluid reservoir fits into the top of the master cylinder.

-Max

 

OK dud , Master ASE/L1 here if it is comeing from the rear it,s the rear piston cup seal, time for a new master.