My first vehicle! 1956 CJ5

[56willys]

Yes 1/8" is the size. The purpose of the hole was to help let the air past a closed thermostat, preventing steam pockets.

Thank you! I'll get it pulled apart and drill it out.

[gmwillys]

The CJ5s had a rubber pad on the clutch and brake;

https://www.kaiserwillys.com/product...ts-55-67-cj-5/

The following diagram shows all the bushings for the clutch/brake linkage. It's pretty straight forward rebuild;

https://www.kaiserwillys.com/diagram...ol-55-71-cj-5/