Well, it's not a Cletrac, but we used another one of our tractors for a similar job in the same space - I don't think it would have pulled the Log Jinker in the first video, but these 3WD Glasgow Tractors were advertised as 'Heavy Duty'.
https://www.youtube.com/watch?v=bAAka9XrLVw&feature=youtu.be
https://www.youtube.com/watch?v=bAAka9XrLVw&feature=youtu.be
