I have a question for the forum, do you have to pull the harmonic balance to replace the CPS?

Yes. See our Tips & Maintenance forum or link below. Proper harmonic balancer puller is needed along with the right sized bolts.

Click here (http://www.automotiveforums.com/vbulletin/showthread.php?t=652664)

Thanks for the info, this forum has been alot of help.