Got ours in 2005, it came with Marathon tires, and the wheeled jack. The only "problems" I've had are:
1. It was missing a hold back spring that is necessary on units being pulled with a diesel that has engine or exhaust braking, that keeps it from activating the surge brakes when just using the engine braking. They sent the unit to me at no charge.
2. I've got a broken fender, not sure how it happened but it's breaking around the rivets on the top of the fender.
Haven't used it in a while as I've ben towing the Ody fourn down bur I'm not going to sell it either as I don't totally trust the Ody four down. Honda says it's not towable four down but lots of people do it.
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel