Brake Proportioning Valve - 68 Roadster

["Dziuba, Larry" <LarryD@pengrowth.com>]

To all Listers and Vendors,  I am trying to find the "o" rings that are
required here.  Two small and one slightly larger.  Do the vendors still
have the kits?  I checked w/ Nissan in Japan and they are NLA there.  If
vendors don't have them, then does anyone on the list know of a good
source.  I realize they must work in the brake fluid conditions (I
forgot the rubber descriptive that hydraulic shops here quoted).  Larry.