[Spyda]

There are ones from Checkmate, Sprint, and others companies (run through a minitruckin mag and you'll see a few) - they don't work well in water sealing, though...you'll need to run a strip of sealer between the fiberglass and the aluminum rails if you want to keep you bed dry.
I'd go with an over-the-rail style from Gaylords - they're weather tight, although don't look as good as the flushmounts in my opinion
Peace,
Spyda
Point Blank Customs
P.S. the flushmounts cost between 400 and 500 bucks

 

[01ZQ8]

well...you can get a flush mount checkmate for our trucks WITH a carpeted finish underneath and a carpet liner for your bed for $439...I think thats a damn good deal...