• The 1990 Chevrolet C3500 is a one-ton truck that has two-wheel drive, indicated by the "C" in the name. It comes standard with an eight-cylinder engine paired with a three-speed, automatic transmission. The EPA classification for the C3500 is "standard pick-up," as stated by Edmunds.
  
  

Engines

• The 1990 Chevrolet C3500 is available with two engines. The 7.4-liter, V8 engine is a gasoline engine that produces 230 horsepower at 3,600 rpm and 385 ft-lb of torque at 1,600 rpm. It has a 4-inch stroke and a 4.25-inch bore. The compression ratio for the gas engine is 7.9-to-1.
  
  Also available in the 1990 C3500 extended cab is the 6.2-liter, V8 diesel engine. It produces 150 horsepower and 280 ft-lb of torque. The stroke for this engine is 3.82 inches and the bore is 3.98 inches. The diesel engine has a 21.3-to-1 compression ratio.
  
  

Exterior

• The Chevy C3500 with a regular cab has a 131.5-inch wheelbase. The regular cab's length is 212.6 inches and it has a height of 75.5 inches. The extended cab's wheelbase is 155.5 inches. It has a 237-inch length and a height of 75.6 inches. Both trims have a width of 76.8 inches.
  
  

Interior

• The 1990 Chevrolet C3500 has standard seating for up to three passengers with additional seating for up to six in the extended cab. The C3500 has a front headroom measurement of 40 inches. The available legroom is 41.7 inches. It has a shoulder room measurement of 66 inches.
  
  

Weight

• The 1990 C3500 comes standard with rear-wheel drive. The maximum payload for the C3500 is 3,714 lbs., according to Edmunds. It has a gross vehicle weight of 8,600 lbs.