49 chevy pickup

Restoring the door hinges on my 1949 pickup, the original hinge pins were seized, some were snapped off in the hinge eye. I used wd40 to free up the rusted pins so I could knock them out. Then I used wd40 as a lubricant to facilitate drilling out the pin holes to accept new thicker hinge pins The hinges are good as new now. On to the rest of the truck.