2011 Sportsman 800……….

Dagone thing keeps wanting to get hung up. The only way I can keep it from sticking is to change the front differential oil once a month. About 3 years ago, I installed the aluminum roller cage but, if I don’t change the oil frequently I end up with a problem.
It suck again yesterday while I was working up a food plot. I drained and replaced the front differential fluid and tried it. Still sticking.

This sucks. Any recommendations????