Yes. Usually the frame and suspension are built heavier in the 2500. which year are you meaning??
Yes they are.
1988 - 1998.
It is on the driver side frame rail back by the trans. cross member. It is up in the frame rail.
Um... I would sure hope so since they are both 2003. But if you mean "will a bumper from a 03 silverado 1500 fit a 03 silverado 2500, (or the other way around)" I am not sure. It might, but the frame on the 2500 is bigger than that on a 1500.
A suburban is a vehicle like a pickup or a sedan is a vehicle. Silverado is a trim level. Eventually Silverado became the name for certain year pickups. Suburban always stayed that body style.
Drivers side frame rail beside the gas tank.
1500
Silverado was the premium trim package for the C/K 1500 series pickups. The 1500 simply denotes the half ton configuration. Other examples of trim packages for the 1500 Series were the Scottsdale, the Cheyenne, the W/T, and the 454 SS.
yes
The 2001 Chevrolet Silverado-1500 has 12 valves.
The 2011 Chevrolet Silverado-1500 has a V6 engine.
The 2008 Chevrolet Silverado-1500 has 12 valves.