I am happy to help set you up, but we do not have a database that would tell us bearing sizes based on a year, make and model. If only it were so easy, right? You may be able to get that information from a forest river dealership if you give them your VIN. Otherwise you would have to pull a hub and get the numbers from both bearings.
For example a very common hub is a 10" drum for a 3,500 lb axle like part # AKHD-545-35-G-EZ-K. This uses the standard bearing combination with # L68149... view full answer...