A Arm bushings

what i did was find something kind of like the shape of a arrow shaft and stuck it through one bushing till i hit the back of the opposite one and hit it with a hammer, pops right out.
 
A long punch and hammer works just fine. They are plastic or delron, and they slide right out easily.

Or put them in your PC oven and melt them out... But thats not recommended haha...<<<< found this out by experience