Requires stabilizing bar SB-080 ( 3200080 ), sold separately . Fits : Chevy / GMC 2007-2013 Silverado/Sierra (Extended Cab only) .

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Happijac Fitlist
Make	Model	Year	Comment_and_Type
Chevrolet	Silverado	2007	extended cab only
Chevrolet	Silverado	2008	extended cab only
Chevrolet	Silverado	2009	extended cab only
Chevrolet	Silverado	2010	extended cab only
Chevrolet	Silverado	2011	extended cab only
Chevrolet	Silverado	2012	extended cab only
Chevrolet	Silverado	2013	extended cab only
GMC	Sierra 1500	2007	extended cab only
GMC	Sierra 1500	2008	extended cab only
GMC	Sierra 1500	2009	extended cab only
GMC	Sierra 1500	2010	extended cab only
GMC	Sierra 1500	2011	extended cab only
GMC	Sierra 1500	2012	extended cab only
GMC	Sierra 1500	2013	extended cab only
GMC	Sierra 2500	2007	extended cab only
GMC	Sierra 2500	2008	extended cab only
GMC	Sierra 2500	2009	extended cab only
GMC	Sierra 2500	2010	extended cab only
GMC	Sierra 2500	2011	extended cab only
GMC	Sierra 2500	2012	extended cab only
GMC	Sierra 2500	2013	extended cab only
GMC	Sierra 3500	2007	extended cab only
GMC	Sierra 3500	2008	extended cab only
GMC	Sierra 3500	2009	extended cab only
GMC	Sierra 3500	2010	extended cab only
GMC	Sierra 3500	2011	extended cab only
GMC	Sierra 3500	2012	extended cab only
GMC	Sierra 3500	2013	extended cab only