Don't write off after market products like AMP. I installed the MOPAR part on my 2018 a couple of months ago and a little disappointed. I chose the MOPAR part because it looked like it may have tucked up a little tighter to the bumper and it is a godsend for getting in and out of the bed especially for us older folks

Too my diappointment the step doesn't lock well in the open position, if you are not careful with foot placement while stepping up it can start to retract. After a few bruised knees I've gotten the technique down but still have to warn others who haven't used it already! I haven't leveled my truck so maybe the angle of my bed is part of the problem. The AMP step looks to have a more rectangular / larger step area and possibly a little different gemotry also less expensive.