I've got a consistent vibration in my '90 300SE that happens at exactly 37 MPH and lasts until about 50-55 MPH, diminishing as I get there. It's very noticable and feels more like a 'vibrating bed' than a wheel vibration.

Any ideas?

Thanks

__________________
Marc Galassini

'93 300CE 38K Sold
'89 560SL 19K Sold
'91 300SE 191K Totalled 11/6/08
'90 300SE 90K