The base engine used in the Sierra was 4.3 liter V6 engine that produced 160 horse power and other optional engines were the 5.7 liter and 5.0 liter models.
All the models came with the antilock rear brakes and were offered in either the 6-speed automatic transmission or the 5-gear manual transmission.
Here are some cool Pictures of 1990 Gmc Sierra
 1990 Gmc Sierra Front View |
 1990 Gmc Sierra Exterior |
 White 1990 Gmc Sierra |
 Orrange 1990 Gmc Sierra |
 1990 Gmc Sierra Side View |
 Red 1990 Gmc Sierra |
 1990 Gmc Sierra Outlook |
 Black 1990 Gmc Sierra |
 1990 Gmc Sierra Interior |
