So, I messed around with the "loadStaticZomboidModel" for the wheels, and that worked. Oddly enough, if I didn't add the complete path to the textures folder, the game hung up on game load.
However, I did get the wheels fixed!
A question I do have is if I can do off with the metallic effect that's on the body. Military vehicles are matte, and well, metallic wood is my favorite.
After that, it's just tuning the thing to feel like a truck.