Hello guy's,

Thanks for all the wonderful suggestions (even the funny ones).

I believe Biodisel300D may have some good points. Due to work schedule have not been able to take more looks at this, but I just noticed that at around 60MPH I also get an intermittent vibration, very similar to tire out of balance condition and since it feel more under my rear (not car rear-end ;-)) it would point toward the rear of the car.
In short as soon as I can will check the drive shaft bearing play and look toward the differential, axles and rear bearing.
BTW how susceptible are the 300SD differentials to develop "issues" that show up under power take offs? Bear in mind my baby has over 500K and owes me absolutely nothing but my care and appreciation.

Adriano

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Adriano

83 300SD 500,300 miles (Well seasoned work horse AKA "Put Put")
93 300D 245,000 miles (Moms Baby AKA "Sweat Pea")
87 300D 185,000 miles (Life giver, aka parts car for my 300SD)