Rick - It sounds like the lube in your speedo is kinda dried out??? This 2024 thread on a
1941 speedo problem (speedo is the same design as used in your early '47 truck) I think will offer some helpful info on your issue and solution. If you want to see other previous threads on the topic, use the
Stovebolt Search to help you find them. I did a search using "Speedometer Repair 1941-47 trucks" and found lots of existing threads that are on topic and could help you with that.
You can also use that search to find previous posts on steering wheel removal and horn repairs, among most any other topics you come across. Happy hunting!
