NO they will not.
The 2003 Chevrolet Silverado-1500 has 12 valves.
The 2003 Chevrolet Silverado-2500HD has 16 valves.
The 2003 Chevrolet Silverado-2500HD's engine produces 300 hp @ 4400 rpm.
ONE.
Technically 2, front and rear. But in reality the front and rear axles are in two sections each, right and left, each run from the planetary gear in the center.
The 2003 Chevrolet Silverado-1500's engine produces 200 hp @ 4600 rpm.
The gas tank on the 2003 Chevrolet Silverado-2500HD holds 34 gal..
The gas tank on the 2003 Chevrolet Silverado-1500 holds 26 gal..
It has 4 of them.
Do you have automatic locking hubs on the front axles?
The 2003 Chevrolet Silverado-1500 has a V6 engine.