GMC Logo1989 GMC Sierra 1500 I (GMT400) Regular cab SWB Wideside: Front and side view of pickup with rugged tires and two-tone paint.

Front and side view of pickup with rugged tires and two-tone paint.Elise240SX, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons

Pickup truck shown with rugged all-terrain tires, two-tone green and white paint, single regular cab, short wheelbase, and wideside bed, captured from front side angle.

View Dimensions of the 1989 GMC Sierra 1500 I (GMT400) Regular cab SWB Wideside

View 2 images of the 1989 GMC Sierra 1500 I (GMT400) Regular cab SWB Wideside

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