Wiper control knob

[Don T.]

1950 pickup.  Is this a pry off knob or threaded? Thanks for answering a dumb question.

[TodFitch]

Not a dumb question, it is better to ask than to break something. I have broken things by guessing wrong.

 

Unfortunately, I don’t know the answer but I bet someone here does and will tell you.

 

[JBNeal]

 

Here is the wiper switch with the knob and bezel removed.  The bezel screws onto the switch body threaded shaft; the knob presses onto the switch split smooth shaft.  Pictured is the small screwdriver blade that I used to pry that knob off of that smooth shaft, as it is a tight fit that gets tighter when dirt accumulates up in there.  Ya might need to wiggle this knob back and forth while prying upwards, but don't get in a big hurry or go all HULK SMASH on this knob as it is pot metal...the first knob that I tried to pry off back in the 90s crumbled to chunks 👀

[Don T.]

Thanks for the info guys. I used a little heat from a heat gun and a ring expander to lift evenly under the knob. Worked real well.