pmechkecknie,

Tighten it until there is no longer any slack. That will most likely be very tight. You will need a long wrench or possibly an impact wrench.

Want 71 280SEL

WIth the bolt out, you take a punch and put it through one bushing, lean it over to catch the other and drive it out. I have never had to apply much force to the ones I've changed.

Good luck,