I think you may be talking about the two circuits for the
balls pictures here.
http://www.pbase.com/dennygraham/image/123312827
Click thru the pictures to get an idea of what you're in for.
Be prepared to sleeve the shaft where the seal rides with a
Speedi Sleeve. They are almost always worn there and simply
replacing the seal won't stop the leak unless it has a smooth
surface to work against.
Also, the bushing may need to be reworked depending on where
you get your kit from.
The

Denny G
Sandwich, IL