SuperRail base for the 2004-2007 GM 1500 (5'8" bed). Sets the Traditional Series rails the 12K #3100 SuperGlide drops onto.
Important Notice
Fits GM 1500 with the 5'8" bed only, and does NOT fit the 2007 current-body-style truck. Built exclusively for the 12K #3100 Traditional Series SuperGlide; super-short beds under 6 feet only.
A SuperRail kit is the rail base your fifth-wheel hitch mounts to — not the hitch itself. What makes it a SuperRail is Clean Bed Technology: when you're not towing, you unpin the hitch, unpin the rails, give the mounting posts a twist, and lift the whole thing out. That leaves you a flat, fully usable truck bed instead of fixed rails you have to work around.
Every SuperRail kit is cut to fit your exact truck, so the rails sit where they belong and the hardware lines up the way it should. Pick the kit that matches your truck and bed, then pair it with the PullRite hitch built for it — the finder sorts out which kit and which hitch fit your setup. American-made, every one.
This SuperRail base fits the GM 1500 with the 5'8" bed, built for the 12K #3100 Traditional Series SuperGlide. It sets the Traditional Series rails that the #3100 mounts to. Because the #3100 is a super-short-bed slider, this kit works only with beds under 6 feet.
See the SuperRail line story above for how the removable Clean Bed rails work. Note the year fitment: it covers the 2004-2007 GM 1500 but does not fit the 2007 current-body-style truck.
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