I have a Back Track trailer for a 19' boat. While replacing the tires I noticed that the inside (backside) of the rims are covered with grease. <br /><br />It seems that the hubs have been slinging grease while going down the road. The trailer has buddy bearings and I bought it used (2000 model) so I am not sure if this is from the previous owner putting too much grease in or if this is another problem such as seals or something. <br /><br />What do you all think?<br /><br />Thanks!