2001 Gmc sierra 1500 hd specs Read Also: 2001 Gmc sierra 1500 5.3 specs 2001 Gmc sierra 1500 sle specs 2001 Gmc sierra 1500 engine specs 2001 Gmc sierra 1500 specs 2003 Gmc sierra 1500 z71 specs 2001 Gmc 1500 specs