Remove the levers at the bottom by tapping on the rods to break the small soft pins. Pull the levers up about an inch or so by twisting and pulling. Apply a little yellow Timesaver (
https://www.snydersantiqueauto.com/searchm.htm?type=merged&sterm=&searcht=yellow+timesaver) and twist and push the levers down. Continue twisting. Repeat this process until the levers free up. Clean off the Timesaver and apply some heavy oil or grease. Clean out the pins from the bottom of the levers and levers and install new pins. The springs hold the pins in place so there is no need to peen them. You can compress the springs in a vice and use 4 wraps of strong waxed cord to hold them compressed. Use a surgical knot. Cut the cord when the levers are installed and pull the cord out with a set of pliers. Make a note of which way the levers install. One is up side and one is down side.