There is a post I made that recently resurfaced which has pics and info on using those. I've got them on my K5.
Outboard is always better for control. But many people inboard them to effectively increase the shock length by angling them AND to be able to fit longer shocks without dropping below the axle or going up with hoops into the bed. In-boarding creates a sort of pivot point where the body just wants to rock on the shocks with little movement in the shock piston, so little or no significant control of body roll. I prefer to kick them forward along the frame rails instead of in, but you still need a stiffer valved shock to maintain control even without the pivot effect. The same geometric characteristic that makes a shock *effectively* longer by placing it on an angle also makes it effectively weaker in controlling movement/acceleration of the body mass.
