Hi Lyn -
I recently purchased a 2001 Champion 206 Elite with a matching Champion trailer. It has the Trailer Buddy Axels by UFP and the blue autocheck rings. I have put some grease in each of the 4 hubs and I see no evidence of water intrusion. I've trailered this rig about 600 miles so far with no problems. Is there anything else to check besides possibly checking bearing adjustment? Thanks for your help.