GMC Med. Duty Truck Paint Info
The Color Breakdown
GMC didn't just give the Medium Duty truck a massive frame; they gave it a surprisingly varied wardrobe of 14 colors. While many of these beasts left the factory in work-ready Wheatland Yellow or Tangier Orange (the "I'm definitely a fleet truck" look), they also offered some genuinely sharp finishes like Nassau Blue Metallic and Gunmetal Metallic. Whether yours is a retired highway worker or a driveway-stored weekend hauler, it's proof that GMC really went for it in the color department.
What to Watch For
Because these trucks are often tall enough to have their own weather systems, the horizontal surfaces-the hood and that massive roof-tend to catch a lot of UV rays. This can lead to the clear coat getting a bit "chalky" or, in some model years, the paint deciding it wants to part ways with the primer in small flakes. You might also notice some wear and tear right around the door handles where fingers and keys do their daily dance. To find your exact match, skip the door jamb first and head for the glove box. You're looking for a silver "Service Parts Identification" sticker with a code starting with "WA" or "U." If it's not there, check the lower corner of the cab wall behind the passenger seat-GMC liked to hide the "birth certificate" in a few different spots on these big rigs.
Driveway Repair Tip
When you're standing on a ladder with a touch-up pen, remember that gravity is your biggest critic. Since many of these colors are heavy solids like Bright Red, the paint is thick and wants to run. Use the "dot" method: instead of drawing a line, dab small dots of paint into the chip until it's filled. If you're working with a metallic like Gray Metallic, give that bottle an extra-long, two-minute shake. Those tiny silver flakes like to settle at the bottom, and you need them awake and dancing to get a finish that matches the rest of your truck. Patience is your best tool-two thin coats will always look better than one thick blob.