XPost: alt.home.repair, ca.driving   
   From: arlenholder@newmachine.com   
      
   On Thu, 30 Jul 2020 22:33:12 -0400, gfretwell@aol.com wrote:   
      
   > OLD school dating from the start of disk brakes was a metal tab that   
   > hit the rotor and made a horrible sound when the pads were worn down   
   > too far. I had that on my 67 Chevelle.   
      
   The last time I looked at this vehicle, as I recall, the metal tab was   
   about 2mm (or so) from the brake pad backing plate.   
      
   Hence, given the datapoints so far in this thread, I'm going with a   
   calculation of miles per millimeter (yea, I know, I'm mixing units)   
   of around 4,000 miles per millimeter (tentatively).   
      
   That's assuming a 12 mm pad when new, and 2 mm left when replaced.   
   o More data is always welcome so that we can hone those figures.   
   --   
   Usenet is best when adults post purposefully helpful datapoints.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)