I just purchased a complete single axle, hydraulic surge brake kit on ebay for my 20' boat/trailer. The trailer originally had brakes, but a previous owner completely removed them, so I had to by backing plates, hubs, actuator and a line kit.<br /><br />The old hubs have a double lip seal, while the new seals are single lip. There isn't a spring in the seal, like I've seen in automotive applications. The question is: Which way do I install the seals? Does the lip face inward, toward the bearing? I should know this, but I simply can't remember.<br /><br />Thanks,<br /><br />Bill
