Chris, 45w is far too heavy in the front.
If you not getting any steering thats going to be the first thing to change, go down to a 35w losi oil on kit springs. 30w in the rear as youve got.
At Bury i ran this setup, with a few minor changes, but found it very good and stable.
http://www.team-durango.com/pdf/setu...01_04_2012.pdf