If you want to cut down on side-to-side headshaking stuff, disconnect the front swaybar when off pavement and let the axle move along the ground independently of the vehicle, instead of shaking you and the vehicle, too. JKS Quicker Disconnects get my vote.
Better/different shocks will also help. Bilstein HD shocks (the Yellow and Blue ones) were a nice upgrade from my stockers when that time came.
The 3/4" spacers will give you...3/4" of lift, though, if you care for that.