This is one of my many designs. The trucks back can be lifted up and down and a flap in the back to dump bricks out of as well. Comes with a plow in front that can turn and go up and down. This includes on minifigure with a shovel and hard hat.
Image is a little distorted, I have no clue why?
Roof can now support seat in side
Added muffler stacks on back
Changed minnor bugs
Horns put in proper place
Back door strengthened
Back load raised up to fix door