1941 KS 5

Here is a link to a K6 and K7 parts manual, the closest I've found online- https://app.box.com/s/otkihx6yoa/folder/23417316

Manuals are available from Binder Books- http://www.binderbooks.com/1941-49%20K% ... Trucks.htm

Assuming you have the serial number, a line-setting ticket may be available from Wisconsin Historical Society, but they are hit and miss before at least the late '50s.

Dean