I have a three gauge pillar mount installed by DIS many years ago. I am trying to replace the dead ISSPRO tranny temp with a new one. There are three plastic inserts holding the pillar in place. I thought they could be easily popped out with a putty knife. They don't want to budge ane I don't want to break something I need for re-assembly. Do they come out or does the whole assembly pull away leaving them in place. Thanks. I just finished the AIS install and want to finish this today while it is warm and sunny. Bill