Don't get step rails.
Get real rock rails, like Shrockworks Sliders, etc.
The OEM steps are flimsy aluminum POS...they do work as steps, but that's about it...they bend/dent too easily.
The sliders go on the same way as the stock steps, a few bolts per side and you're done eitherway.
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- TJ
2001 Xterra '03 VG33, SE 5 spd, 305/70/16's, Revolvers, UBSkidderz, Doubled AAL's, 3"SL/2"BL, winch/bumpers, skids, sliders, OBA, Snorkel, pine stripes....
Friends don't let friends drive stock.
http://www.gifsoup.com/view/501230/tj-tackling-crawlers-ridge-o.gif