So I got my new 2015 yesterday, the first thing I did was remove the sidestep.
The metal bar that supports the steps goes the whole length of the door curtain. The bar flange says 'SAFTEY ITEM DO NOT REMOVE'. When you remove it
... behind the flange are several extruded aluminum blocks. This is my first time exploring this area of the LR4 so I don't remember if this was on the 2014.
Pics below.
The metal bar that supports the steps goes the whole length of the door curtain. The bar flange says 'SAFTEY ITEM DO NOT REMOVE'. When you remove it
Pics below.