Here are a couple pics of a Model T with crawler tracks:
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fmailer.fsu.edu%2F%7Eakirk%2Ftanks%2FUnitedStates%2Fcargo-personnel%2Fuscpc-FordModelT-ChaseTrack.jpg&hash=f6651e38a0008a3940f57ebf85c2e695bf7682d1)
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fmailer.fsu.edu%2F%7Eakirk%2Ftanks%2FUnitedStates%2Fcargo-personnel%2Fuscpc-FordModelT-ChaseTrack-1.jpg&hash=f1ed7f56c6d7677c9c8d0fbabdfe1961948dcf28)
And here's the same track system applied to a Dodge truck:
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fmailer.fsu.edu%2F%7Eakirk%2Ftanks%2FUnitedStates%2Fcargo-personnel%2Fuscpc-DodgeUnitChaseTrack.jpg&hash=ef141efaa87428261d0655f5bd1478373ee0e1ae)
There's more stuff like this at the following site:
http://mailer.fsu.edu/~akirk/tanks/UnitedStates/cargo-personnel/cargo-personnel.html (http://mailer.fsu.edu/~akirk/tanks/UnitedStates/cargo-personnel/cargo-personnel.html)
Here's a Model T with a different track system:
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fwww.seriouswheels.com%2Fpics-def%2FFord-Model-T-Centennial-Converted-into-a-Snowmobile-1280x960.jpg&hash=bae61c02dcc3bb2ca0972ae976d5ecceec495f0b)
And here's a Model T mail carrier with a "halftrack" rear and skis up front:
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fwww.vanishedamericana.com%2Fwp-content%2Fuploads%2F2010%2F01%2FMail-carrier-using-modified-Model-T-Ford.jpg&hash=27a82a46a4a586c3e165a288e6d872f3a9a03f3a)
And here is Uncle Russ' tracked wheelchair as he is hunting nit pickers.
Lawton, go stand in the corner! -- ssuR
Russ: I've been waiting 6 + months to drop that one on you. ;D I'll go to a corner as soon as there is an empty one. :P
From a 1940 Snow Bird brochure. Love the woody but... how do you open the door? ;D
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(https://lh3.googleusercontent.com/-iFVTUmJ9L7s/ULJ_y0i5uFI/AAAAAAAABfc/kpAVvc1IAns/s800/img009.jpg)
(https://lh3.googleusercontent.com/-J_0DB-nTUNY/ULKAZ5l5BII/AAAAAAAABf8/o7rc-LecKvE/s800/img010.jpg)
(https://lh6.googleusercontent.com/-MNLo6NdUd0w/ULKAagyFoEI/AAAAAAAABgE/L1udnNDAU1s/s800/img011.jpg)
(https://lh6.googleusercontent.com/-LSosR2cNI7I/ULKAkKM7RTI/AAAAAAAABgM/O739hVReXbE/s800/img012.jpg)
(https://lh3.googleusercontent.com/-7EXNUsejn58/ULKA2g_KqoI/AAAAAAAABgU/jF2GpfRrbfU/s800/img013.jpg)
(https://lh5.googleusercontent.com/-iAYs1kIWmik/ULKA3dvZ5yI/AAAAAAAABgc/OsFXUOOfzmw/s800/img014.jpg)