hiluxhack

I started getting a squeak from engine on shut down. Didn't think much of it until the distributor had a catastrophic failure. It looked like a backlashed fishing real under the rotor. I replaced it with a new one from O'reiley's auto parts and the squeak stopped. After a couple months it started again. Is there a lube step I missed? I'm feeling like a dumbass. Please advise.