<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 169indy</div><div class="ubbcode-body">O-rings are easy to find (Viton) material is a good choice. The shaped seals are going to be he difficult items to source.</div></div>
Viton is not compatible with automobile brake fluid [1]. EPDM is the way to go. The other seals are a little more difficult, but they're doable.
[1] One source:
http://www.elderrubber.com/material.htm