1956-62 Wiper Transmission Special Nut   

You have just finished the new paint job on your Corvette. It has taken weeks or months, and finally the re-assembly is under way. You attach the wind- shield wiper transmissions under the dash and test them. They work perfectly. (How is that for day- dreaming?) Back on the outside of the car, you slip the little rubber gasket over the wiper shaft and then the chrome plated escutcheon and nut. Oh no! The nut is not a simple hex nut but a slotted ring type, requiring a special tool that you don’t have.   

Is there any chance that the tool man will have the spcial tool with which to install a 1953-1962 Corvette windshield wiper escutcheon nut 25 years later? NO!! 

If you can just place the point of a screwdriver in the slot and tap it with a hammer, you could tighten the nut. You place the screwdriver point in the slot and lightly tap. The nut turns. Great! Just a little more — Oops! The screwdriver slips out of the slot and puts a deep scratch in your new paint. 

Has this type of thing ever happened to you? It has to me, so I have learned to be very careful. If I don’t have the right tool for the job, I try to borrow one from someone who does. However, when restoring an old car, sometimes the correct tool isn’t available anywhere. I have learned that I can often make the tool I need. It is usually fairly easy, and it insures that I will be able to do the job right the first time. 

The tool shown took only about 15 minutes to make. It works on the early Corvettes and other cars of that era. 

Use a 8” piece of ½” electrical conduit. It is called ½” E.M.T. thinwall tubing, and it is available at any hardware store worth its salt. Cut the slots with a hack saw. It is easily made by hand. It cannot slip off the wiper nut because it is placed over the wiper shaft. It makes tightening or loosen- ing the nut a simple, safe task, and you cannot possibly damage your paint job.

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