Re: towing ?
Have the trailer bearings ever been removed, inspected, repacked, and reinstalled? Not saying they are bad but they are almost 9 years old, if they have never been inspected for pitting, spalling, etc it may be a good time to do it or have it done. Usually on a bearing buddy once the center hub/spring starts to move I stop pumping. If you filluntil they are all the way out it can add pressure to the hub interior esp. once warm and can cause the inner seal to fail. At a minimum I would closely check the hubs for warmth every time you stop or every 75-100 miles. If they are hot to the touch its time to replace the bearings and races. Check all tire pressures and have a good spare and the proper tools to change it with. Check all fluids in the tow vech. an oil change might be good also depending on the age of whats in there. Make sure all trailer lights are working as they should, if the trailer has breaks check the fluid/operation of them as well. I tow 7 hrs each way to lake powell 3-4 times a year and its a long hot drive through the desert, I like to be sure I have done everything possible to avoid breakdowns.