Hello, I don't have my Ford manual in front of me, but I thought the lube is do at 15k? Also, I recall the same thing about the U joints, but also recall a note about some that are equipped with sealed u joints on certain drive trains.....would be interested to find out. also my RV shop is where I have been getting my oil changed, and they said they just do the lube each time though. I have not thought to ask them about the U joints
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2014 American Coach Eagle
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