Could they be to close together? When you hit some bumps on the road it has a little wobble back and forth in the back and it tilts some in the back around corners.
and as for position, the closer the shock is to the wheel its intended to dampen, the more effective it will be, this is why new car makers have started putting the shocks outbourd of the springs by the tires, new tacomas and f 150s for example. this wouldnt work for wheelers due to the fact that we travel far enough to damage these shocks, but i for instance mounted my shocks next th my spring pad and lift block, and at the topo i mounted them as verticle as possible. about 45 degree angle, and still have usable upward travel
