I just swapped the old one with a new one, old one was rotted almost all the way threw. But wow for being such a easy job on all the other cars ive done it to this one was a pain in the ass. Took me close to 4 hours to do. The balancer just didn't want to come off at all. It actually bent the bolt to my puller. All I got to say is if you are going to do this for the first time on your own car set some time aside for it.