This was in a box of miscellaneous parts when I purchased my project. (1940 cab, '37-'39 bed, 1947 chassis)

It has a 5/16" thread.

It looks like something that "When you need it, you need it!"

Thanks
Attachments
IMG_9998.JPG (141.82 KB, 217 downloads)
IMG_9999.JPG (54.63 KB, 216 downloads)

Nick
1940 KC Model 1/2 Ton Pickup Project
(with '37-'39 Bed and what we think is a '42-'46 Frame)
Taos, New Mexico