[TR] primary plunger seal

[Gary Nafziger]

anyone know if theres a source for just the seal for the primary plunger on a
tr-6 brake master cylinder?  I purchased a new re-build kit and while
attempting to strip the seal over the end of the plunger it split in half. 
Hate to purchase a complete kit again simply for one seal.  I probably did
make a mistake in that I stripped it over the biggest end of the plunger
rather than the pointed end which might have been easier.

thanks!

gary n.