Lca bushing help.

I am just throwing a question out there......what potential problem would a bushing that fits like that cause? In other words, once assembled, the control arm is trapped with no place to go. I kinda like the idea of drilling a hole straight through the shell, bushing and inner shell and screwing a grease fitting into the outer shell. Seems to me a slip fit in the inner shell would take any binding away that might happen with a press fit.

Of course, I could be totally off base. I simply present the idea for discussion.