[Y-Blockhead]

Originally Posted by SeaSlugs

its not only the push rods that are worn but both the pockets they sit in as well. that pin acts like an air hammer as you drive and engine vibrations especially on worn out brake systems that dont keep pressure on the rods/arms.

Haha, I can relate to that! But if all the free play is adjusted out and everything lubed up nicely, there shouldn't be too much Jack Hammerin' going on.