With a built-in RES(TM) rail expansion system, UltraGroove(TM)  makes it easy to attach nearly any Thule(R) or Yakima(R) rack for bikes, kayaks, cargo baskets and more. With or without racks, it's incredibly easy to use and it's covered with a weather-resistant, padded ArmorTek deck laminated to rigid aluminum panels. It opens quickly with just a turn of the lock knob and closes just as easily with a pull on the built-in strap.

This Part Fits:

Year	Make	Model	Submodel
1994-1997,1999-2000	Chevrolet	C2500	Base
1989-1998	Chevrolet	C2500	Cheyenne
1999-2000	Chevrolet	C2500	LS
1989-1992	Chevrolet	C2500	Scottsdale
1989-1998	Chevrolet	C2500	Silverado
1994-1997,1999-2000	Chevrolet	K2500	Base
1989-1998	Chevrolet	K2500	Cheyenne
1999-2000	Chevrolet	K2500	LS
1989-1992	Chevrolet	K2500	Scottsdale
1989-1998	Chevrolet	K2500	Silverado
2001-2005	Chevrolet	Silverado 2500 HD	Base
2001-2006	Chevrolet	Silverado 2500 HD	LS
2001-2013	Chevrolet	Silverado 2500 HD	LT
2007-2013	Chevrolet	Silverado 2500 HD	LTZ
2004-2013	Chevrolet	Silverado 2500 HD	WT
2011-2014	Chevrolet	Silverado 3500 HD	LT
2011-2014	Chevrolet	Silverado 3500 HD	LTZ
2011-2014	Chevrolet	Silverado 3500 HD	WT
2014	GMC	Sierra 2500 HD	Denali
2014	GMC	Sierra 2500 HD	SLE
2014	GMC	Sierra 2500 HD	SLT
2014	GMC	Sierra 2500 HD	WT
2014	GMC	Sierra 3500 HD	Denali
2014	GMC	Sierra 3500 HD	SLE
2014	GMC	Sierra 3500 HD	SLT
2014	GMC	Sierra 3500 HD	WT