being your basic money scrooge i too the ones off soaked them in carb cleaner and worked the little ball and they cleaned up and are ready for another 60yrs but got some when i was re assembling the suspension old one really bad and used napa, have read all the manuals on the jeep and can find nothing about "servicing the air cleaner" i forgot how to do it, other than cleaning it how much oil goes in it? went on internet and did not find squat...
and if i remember the cleaning part was shall we say messy