I installed a 3" coil spring spacer lift blocks on my 97 Wrangler TJ 2 door and it is handling like a boat. Rocks and sways back and forth at anything over 30 mph. I was told I need to get extended control arms but I was wondering, do I need upper and lower control arms for the front and for the back or can I get just lower for the front and back or just upper for the front and back or upper and lower for just the front etc. What do I absolutely have to get to fix the handling. (On a budget because being forced to move)