In a message dated 3/27/2010 8:10:29 A.M. Pacific Daylight Time, 
vbra676539@aol.com writes:
With the 
  same pressure inside and out, it seems that the unit would operate normally. 
  
Vance
 
Hello again Vance. Here's a little sketch of the "Oil Bladder".
It's just a concept so far but the components will be something much like 
this.
This bladder will get hooked up to everything that's outside the sub that 
needs oil compensation. Motors, actuators, and whatever.
The CV Joint Boot is made from the same stuff the other boots are made of. 
Some kind of flexible plastic. These boots are pretty thick and resist all sorts 
of chemicals and anything else your car is likely to throw up, including "road 
salt" 
The ones for the actuators were $15 each, and the CV Boot is $12 each. The 
nice thing here is I can buy a replacement from just about any auto parts 
store and switch it out in just a few minutes if one gets buggered up. Frank 
D.