I put these on a couple months ago. They are made by Bestop called High Rock slider steps and were relatively easy to install. I like them because the "up" position works fine for me, but the down position works better for the older folks and the full figured folk.
Down also makes for a nice little seat as well
And, as usual, shopped the crap outta them. Quadratec price matched someone from Amazon and got them for $328 shipped instead of $345 and $156.99 shipping