OP, can you give more specific info on this.
Is it bouncy in the front or back?
How many miles are on the LC shocks?
When did you install the LC shocks and did they function fine when you installed them?
What coils are you running in the back?
If the rear shocks are shot that would be a source of the bounce in the back. But I can tell you this, I had KYB gas shocks several years ago and I HATED them. They were terrible in my opinion. They did make my truck feel bouncy and just generally terrible in handling. Since you added them recently, Im guessing that they are the main ingredient in the bouncy handling. If that's the case what you are feeling is actually the opposite of bouncy. The shocks are too stiff from my experience, which leads to slow rebounding of the coil. This produces a feeling of a really rough bouncy ride. Not bouncy like your truck is bouncing up and down, but more like youre riding on a wooden roller coaster and the wheels feel like theyre going to vibrate right off the truck. when you hit bumps Is this what youre experiencing?