There's some footage in the vintage drag film footage of the Sox & Martin hauler in these videos I posted on Youtube.

Such as near the beginning of Part 2 at the 00:35 minute mark or near the end at the 13:00 minute mark below..

http://www.youtube.com/watch?v=WarGgPgf1cs

.. or you can start watching the whole film from the beginning, it's split into 2 parts, here's Part 1 below...

http://www.youtube.com/watch?v=70lDDC9JhYk

Cheers,
Mike