People it is time to get off the maintenance issue. Things break, go bad any time. I just had a brand new Suncoast torque convertor go bad,two weeks ago, at 2060 miles since installed, in no where Montana with 1400 of those miles towing. My first break down while on the road in over 48 years and lots of thousands of miles, other than a flat tire. Luck percentages finally caught up with me. Vehicle fixed and I went on my way. Life is good.
It does not appear that you spent time on a forum complaining about non existant or nearly non existant warranty coverage, costs, delays, nearly ruined vacation, selling dealer and generally venting about how you were not being financialy 'made whole'. And the sad thing is that the problem likely stems from the folks that last packed the bearings and not the coach manufacturer, the axle manufacturer, the bearings, the selling dealer or the warranty companies. It appears the OP has had three good years of service out of the axles and bearings. Now there is a problem and financial restitution goes back to the dealer and warranty folks?????