Here you go.
https://willysjeepforum.kaiserwillys.com/showthread.php?2283-How-fast-is-the-RPM-at-speed-or-the-speed-at-RPM
Type: Posts; User: bmorgil
Here you go.
https://willysjeepforum.kaiserwillys.com/showthread.php?2283-How-fast-is-the-RPM-at-speed-or-the-speed-at-RPM