Make 1 Track object.
Uv_map it so a texture can be applied.
Mirror it for left/right.
Now you can combine both tracks into 1 for the most simple Animation way.
Or you can leave left/right seperated for advanced scripters.
OK, on the texture, fill in the Track space with a track texture.
Make sure that the uv area of the track is short by 1 link, so that you can move the Uvmap for the other track objects.
Clone the track object for as many frames of animation that you want. (4 tracks usually works just fine)
Now keeping in mind the sequence of these track objects, use the UV_map edit to move each step of the animted tracks forward slightly each, so that each step of track objects appears to have moved forward each time.
Here is an example of how I do mine.
The yellow box represents the UV map of each track object.
You do not need a massive texture area with 4 seperate tracks, just 1 and slide the UV's across it.
The Track sides however might need at least 2 areas for animation frames, or 4 depending on how ambitious you are.
Now I've been using Cylinder caps for the gears/wheels on the sides of the tracks, and this works great too, if you combine animated tracks + wheel caps you end up with a pretty solid animation for it all.
On your Stumpy model, you could easily get away with only 1 set of wheel caps, up front where it is visible.
