Hammer11

I have an 04 F150 SuperCrew that I'm trying to add Coverking neoprene seat covers to. It has the 40/20/40 front seat. I'm having problems getting the seat bottom covers on and am thinking I need to remove the plastic cover that hold the lumbar and seat adjustment levers to get them on right. Does anyone know a better way? If not, how do I get those covers off so I can get the seat covers on correctly? Thanks in advance.