Congratulations and welcome to the forum
Sorry, but I'm not familiar with those diesels, but the description does sound like it could be from the turbo.
Just for clarity, the whine is there all the time at highway speeds on both level road and up grades? It only goes away when going down hill?
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Sherm & Terry w/rescue Eydie (min Schnauzer) & Charley (std Poodle)
SOLD:2015 Jay Flight 27RLS, GY Endurance (E), Days: 102 '15, 90 '16, 80 '17, 161 '18, 365+ '20
SOLD: 2006 Ford F350 PSD, 4WD, CC, LB, SRW, Camper pkg., 375,000mi
Full timing: Some will think you're crazy, some will be envious, just enjoy the freedom!
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