I've seen a web page on Clark 5-speeds that says some are OD 5th and how to identify those that are. I don't know how I found it.

Unless this firetruck was built to run on the highway its probably a 1:1 5th.


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...