The height of the 2002 GMC Sierra-2500HD is 6 ft. 4.2 in. (76.2 in.).
It's worth about $13,000. See quotes at http://www.edmunds.com/gmc/sierra2500hd/2006/index.html
The height of the 2002 GMC Yukon is 6 ft. 4.7 in. (76.7 in.).
The height of the 2002 GMC Savana is 6 ft. 7.6 in. (79.6 in.).
The height of the 2002 GMC Yukon-XL is 6 ft. 3.8 in. (75.8 in.).
The height of the 2002 GMC Sierra-1500 is 5 ft. 11 in. (71 in.).
The height of the 2002 GMC Savana-Cargo is 6 ft. 7.6 in. (79.6 in.).
The 2002 GMC Savana has 12 valves.
The 2002 GMC Yukon has 16 valves.
The 2002 GMC Savana has a V6 engine.
The 2002 GMC Yukon has a V8 engine.
The 2002 GMC Yukon has overhead valves (OHV).
The 2002 GMC Savana has a 4-speed automatic.