I had a 5th. wheel with a different make of axles and one day when I put the brakes on there was a terrible crash bang and the rear axle rolled back under the unit.Long story but the same thing happened but it did have the correct saddles,the welding broke allowing the axle to roll.After 3 weeks of pleading etc. I finally got an axle,got approval for a local welder to repair,at the same time the other axle was rewelded as was the new one because it was no better just not broken.Does Heartland make any fifth wheels with out Lipperts?Do we have a choice when ordering?