I did this exact same thing with my front climate control fan last night but now you are telling me there's a rear one too?! I thought I heard another noise coming from back there but I didn't think it was another fan thingy. I will have to take that one out and clean it and oil it. What a pain. I 've never seen such a thing before.
lol...yup one in the back too. That's funny cause I was just out there again after fixing the rear one and noticed the front ones a bit noisy...not half as bad though.
Also, I just finished going through the PO's maintenance records and he was quoted $190 to fix this last month...I think I deserve an import beer after that job!