Bob: The "tube" you are talking about is a major part of the body. In certain parts it's doubled up in steel. In the lower portion...it is the main steel frame of the body. Modifying this would take major cutting, welding, and reinforcing of the body and frame. Not a viable option unless you are going full race, or run a integrated tube frame of some sorts.
Christian: putting a spherical bearing won't make a difference, as the shock has very limited movement side to side....the stock bushing design is fine. The hole is large enough to fit shock pins of all sizes. It's the actual car's body that is in the way.
Christian: putting a spherical bearing won't make a difference, as the shock has very limited movement side to side....the stock bushing design is fine. The hole is large enough to fit shock pins of all sizes. It's the actual car's body that is in the way.