Don't understand your question...... If you mean the rear main bearing in the engine ... then NO.
The 2003 Chevrolet Silverado-1500 has 12 valves.
The 2003 Chevrolet Silverado-1500 has a V6 engine.
The 2003 Chevrolet Silverado-1500 has overhead valves (OHV).
The 2003 Chevrolet Silverado-1500 is a gas-powered vehicle.
The 2003 Chevrolet Silverado-1500 has a 5-speed manual.
The height of the 2003 Chevrolet Silverado-1500 is 5 ft. 11.2 in. (71.2 in.).
The 2003 Chevrolet Silverado-1500 runs on regular unleaded.
The 2003 Chevrolet Silverado-1500 is 16 ft. 11.2 in. (203.2 in.) long.
The 2003 Chevrolet Silverado-1500's turning circle is 40.7 ft..
The 2003 Chevrolet Silverado-1500 has a 9 ft. 11 in. (119 in.) wheel base.
The ground clearance of the 2003 Chevrolet Silverado-1500 is 0 ft. 8 in. (8 in.).
The front track of the 2003 Chevrolet Silverado-1500 is 5 ft. 5 in. (65 in.).