i replied in your other thread. I had a bad replacement master cylinder. pulling my hair out... replaced the NAPA MC with a TOYOTA dealer MC and bada bing! I've been learning that lately, napa's quality has been slipping. 5yrs ago.. I'd swear by them. in the past 1.5yrs I've had bad A/C compressors, brake calipers, master cylinders etc... I'm not as fond as napa as I used to be. I'll buy my hoses from them b/c napa has good "USA" hoses. My primary source for parts... TOYOTA <img src="/forums/images/graemlins/cheers.gif" alt="" /> As for your master.. don't be suprised if the part you put on is worse than the one you took off!!!