Shocks are what is mostly responsible for ride quality. A while back I put on rough country 2.2 shocks and they were absolutely terrible. It felt like I was driving a covered wagon across a boulder field they were really that bad. I sent them back and replaced them with OME shocks and it rides much better than even stock now. If your going to do shocks you might as well do a 2" coil lift instead of spacers, JMO. If your set on spacers you can replace the shocks and pop in spacers and depending what kind of shocks you get the ride could be better or worse than stock.