This site is great since U post a noise and it the noiise goes away!

Since I had heard a weird sound with just one rear wheel at a time raised, both, yesterday I raised both at same time.

Perfectly quiet. Maybe the lube needed changing or my hearing is too good. It had 175K on rear lube, so best it got changed.

So I u want to check for a bad Something, best to raise both wheels or you may hear what I heard, that apparently is normal, if only one wheel is raised and u get speedo up to say 40-50 MPH range.

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1982 300SD

Hey LNG.
Long time no hear!
At the risk of being the grim reaper, I thought from your description that you may have a problem with the spider gear in the diff. The new oil being a bit more viscous has probably made it quiet. When you turn one whell more than the other it turns the spider gears. I suspect you have some very minor ware marks on one side of one of them. Nothing to get too concerned about.

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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving