Here is a gravel hauler vector art file that's ready to go in a t-shirt design. This Peterbilt Gravel Hauler is set up as vector spot colors, and can be changed to match your design's palette. 

File types included are: 

• Adobe Illustrator CC
• Illustrator 10 .EPS - Compatible with Corel
• High Res PNG Files w/ transparent background
• PDF files that can be opened in Corel or Illustrator

As usual, if you're unfamiliar with design programs, I am more than happy to modify the color of the vehicle for you at no extra charge. Just email me at info@car-clip-art.com!