When installing, do not install the bushing by itself.
Put the bolt thru the steering arm, washers, and the bushing.
Then push the bolt thru and then put the bottom bushing and tap in
slightly and then finish the install.
The MB book says to install the bushing in first and then the bolt.
I also used soap and water on the bushing to help slide in.
I was told this is the same setup used in other chassis of MB