Info needed: M38A1 Master Cylinder Replacement?

[rob love]

Personally, I wouldn't bother. Your brand new one should last 7 to 15 years.....by then your rebuilt one sitting on the shelf and drying out will be garbage again. As well, if your old one is pitted, you have to hone it to get rid of the pitting....dimensionally it is going to be out.

Brand new master cylinders are $50 from Rock Auto....possibly even cheaper on ebay. When you look at the price of the rebuild kit ($42.18 at NAPA) why would you want the lack of reliability of a rebuild?

The only exception to the above is if you had a fairly new cylinder that got contaminated and swelled up the rubber. In that case, if the bore is good, a rekit will (almost) make sense.