I built this for my son. Took me 2 1/2 years to finish it. I designed it and it's based loosely off of a Model Twenty Two Caterpillar dozer.
The whole build was originally posted here.
Scale Model Dozer Ride On For My Son - The Garage Journal Board
Here is one video. There are more if you look under my name.
https://www.youtube.com/watch?v=E5XhgXY1Rrs
Here are some highlights.
http://i775.photobucket.com/albums/y...ps9d1cc823.jpg
http://i775.photobucket.com/albums/y...ps62433dd6.jpg
http://i775.photobucket.com/albums/y...ps10fa502e.jpg
http://i775.photobucket.com/albums/y...ps9e9620e8.jpg
http://i775.photobucket.com/albums/y...ps418a70bf.jpg