well i posted a few times earlier asking advice on a Clutch master cylinder. I baught the one from advanced auto parts for 67 dollars. Not too bad a price, but for ***** and giggles I decided to go to napa and see theres since it was being sold for 18 dollars. And would you believe it , they are the exact same units made by Nabco in Japan. For some reason i believe they stopped selling the plastic replacment and now have the aluminum unit but didnt change the price from the old plastic one. So I picked the new one up today and returned the other one saving myself 50 bucks. So i advise everyone who needs one or is looking to have one as a spare to buy one from NAPA now before they realize their mistake.