If I lower do I need Lower Control Arms?
 

Is it going to hurt me if I drop my car without putting LCAs? I imagine the LCAs are for more traction. The PanHard Rod I figure is something I most likely will need.

you shouldnt, though some people have had the rear end, end up not in the center of the wheel well, so adjustable LCA's were needed (if you want to bother) Mine is slightly off and havent gotten the ajustables yet, no problems.

you WILL need LCA relocation brackets, unless you like having no traction whatsoever.

no, but you might need some LCA relocation brakets to put the LCA's lvl to the road.

You don't need LCAs to drop your car. LCAs and brackets are definitely good when wanting to eliminate wheel hop and increase traction.