RedBlur,
I think everyone covered your questions pretty well so I just have a couple of notes to add.
I can help you out with the diff drops if/when you decide to go that route. Turn around time is really slow because I only have 3 sets of differential brackets and have to wait for people to return their old ones to me for the next mod. Joe Darlington sells the modified brackets as well & you can find out more info on this by searching on "diff drop". That'll pull up several long threads so be prepared to do some reading.
As far as torque split side to side. Remember that you have a limited slip differential in the rear but an open differential in the front. That basically means that the rear tire with the most traction will get the power & the front tire with the least traction will get the power. That may 'splain the situation you were in when you went off the road.
Tom