clock installation

If anyone's trying to understand the 1960s Rube Goldberg electro-mechanical dash clock, you might appreciate having a look at this original patent.

Hi - I have a 64 LeSabre Convertible that did not come with a dash clock. I have bought a clock and want to install in in place of the clock delete. I read somewhere that you need to drill 2 - 3/8" holes in the delete and insert the handle of a pliars and twist out the delete. It sounds...