I'm looking into some more sophisticated hydraulic solutions. IE, using a hydraulic pump and valve system to actuate the hydraulics instead of a servo. I have been doing research in the "Earth mover" RC group and found a bunch of info related to this. Here is a company that makes hydraulic retracts. I believe we can utilize this system to actuate our hydraulic stearing cylinder. I've found all kinds of different cylinders to. Here are the links:

http://morpower.net16.net/index.php?...tegory&path=59

http://www.robbe.de/zubehoer-ersatzt...aulik.html?p=1

http://www.gardentrucking.com/produc...esort=1&max=10

Electric cylinders:
http://www.cti-modellbau.de/index.php/cat/c32_.html

This one under Hydraulic (lower page):
http://www.leimbach-modellbau.de/

Well, this is a start. I had no idea how incredible and technical the RC truck and Construction gang was:

http://rctruckandconstruction.com/forumdisplay.php?f=7