The oil-filled axles will be a good setup--until the gasket starts leaking. I think all 3/4/1/1.5 ton trucks use this method of lubing the bearings. If Dexter/Lippert did not scrimp on the materials, it will be a great improvement in bearing life.
Joe
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2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired
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