My jeep was awesome in the sand. Could go to the beach and never have to put it in 4x4. I had rough country 4"lift. I replaced the rough country coil springs with rubicon express 4.5". It actually lifted it about 1.5"! I also replaced the shocks with bilstien 5100s. The other day I got stuck in sand. It's like it's not getting any traction in sand .. Like it's way too light in the rear. Could it be because the springs are too stiff? The only thing I changed was the springs and shocks. I'm running bfg all terrain 35x12.50.