2011 Allegro Drive line noise. Very Disappointing!!

[GARYMC74]

Just picked up my new Tiffin Allegro 35QBA (f53,22,000 gvwr, 242" WB) at Ancira RV in Boerne, Tx. On the drive back to Dallas area I noticed a fairly loud whine in the driveline. Really begins to sing at 60-65 mph, louder on acceleration and quiets down when coasting. It has about a 1000 miles on it. Does anyone have any info on this condition?

[CoastieSCPO]

Gary, does it sound like the differential. If so, maybe you should check the fluid level. I've heard that they sing when low on fluid. Another thought is the zerk fittings on the universals along the driveline itself.