I have a 2002 Trophy W/A on a single axle Escort trailer. Its a big axle with big wheels but I just had to replace my bearings and races after one year. I do fish in Saltwater but don't tow the boat very far. The shop says the boat is too heavy for a single and I'll keep having to replace them??? I'm guessing with 20 gallons of gas,gear and a 135 Opti it weighs about 4500#. Too much? I'll contact Escort but just wanted to see if anyone had any experience with this bearing problem on a single axle trailer. Thanks