Wierd part needed!
I just did this on mine. I did the one on the arm to the driver side wiper arm and it was easy as pie, once i figured out what i was doing wrong. Don't think I didn't say some choice words figuring out how to get it back together without cutting my self to death.
I pulled the gauge cluster out, and I just happen to have the steering wheel off. Anyway with the rod that ties the two completly out of the car I used a pair of pliers to "snap" the bushings into the arm. Then I put a small dab of grease in the plastic bushing. I then threaded the arm back through the hole where the wiper motor goes and I attached the end to the wiper first. BTW this is a good time to replace those seals that are common to leak. I again used the pliers to squeeze the bushing down on the pin. I then attached the other end through the hole where the wiper motor goes. Then I reattached the wiper motor again using the pliers to make sure the bushing seated all the way on the pin. Getting the motor reattached was sort of tricky b/c there's not much room to fit the pliers in and hold the motor in place.