My 5th wheel came from the factory with the Mor/ryde suspension. Oct 2004 we had the disc brakes and neverRlube hubs put on. Plus the rubber suspension of dually. The disc brakes are awsome. The trailer will stop itself - don't have to worry about the drums getting hot. I have tried to get the discs hot coming into a rest area and they just won't! Plus I don't have to pull the wheels every year for lube of bearings. If you can afford it, it is a good upgrade. If you are thinking of trading soon I would not. This is a long term investment.