Red pickup truck with a regular cab, long wheelbase, and wideside bed featuring a 4x4 drivetrain, a towing hitch, and a covered cargo area, emphasizing utility and ruggedness.
View Dimensions of the 1989 GMC Sierra 1500 I (GMT400) Regular cab LWB Wideside
View 3 images of the 1989 GMC Sierra 1500 I (GMT400) Regular cab LWB Wideside