Thanks for the information. My 2003 RX300 has the same vibration that disappears at higher speeds of 45+.
Independent service guy says U-Joints are loose, he can't just replace the drive line Ujoint support bearings.
So I need to buy a new 3 piece drive shaft for $2173 installed. Seeing that bootnthejeep video you suggested shows it can be done!
Now how do I find the service tech in western Chicago suburbs who will do it?
I found a drive shaft company that will order a rebuilt and my service guy will install.
Saved a grand.