Tesla Model Y or Model 3 brake pedal rattle reduction shim

Disclaimer:  Don't do this unless you are comfortable with some trial and error.  Because our Tesla's are such precision built machines (yes..sarcasm) the default shim thickness may be too loose or too tight for your pedal assembly.  Proceed at your own risk.  Ensure things work properly with no binding before driving on public roads.

My Model Y has had a rattle from the brake pedal when going over bumps since day one.    I finally dug in and found that the clevis and pin that attach the master cylinder pushrod to the pedal had slop in a couple directions.  The shims  with the tabs (the tabs make installation easier)  go on the inside of the clevis and touch the outside of the pedal.  The shim without a tab goes on the clevis pin against its flange.  This thickness is what worked for me to put just the slightest amount of pressure on things to not impede any pedal movement but still damp the motion that would result in a rattle.   If you need a different thickness, it is very easy to scale the Z in your slicer of choice.   

To take this one step further, a piece of Tesa tape on the surface that the brake pedal switch pushes against can further reduce some noise.   After I did this, I did some some occasional and random “Both pedals pushed” messages while driving.  As the tape yielded over a day or so, this went away.    The last picture shows where the tape goes.