This also might be sacrilegious to say but if anyone thinks that chrysler engineers invented some special rubber to use as a grommet for the MC pushrod... well I got a bridge to sell you in San Francisco...
Tip: To get the push rod out of the master cylinder.
Leave the master cylinder bolted to the fire wall.
Remove the brake switch bracket.
Pull back on the brake pedal.
"Pop" out comes the push rod.
And yes, Chrysler engineers did design a pushrod grommet for their master cylinders. Not sure why that is so hard to understand ?
