Front clam shell diff swap irritation

hey gang,
Finally got my new third from ECG and when removing the old one i came across something very frustrating.... or maybe I'm just .....

There is a 17mm Allen head that is one of 3 main bolts holding the diff in place.
For some reason it simply spins ( it appears some to be some bushing type material around a bolt with a totally flat head ) on the transmission side

How do i get this damn thing off ? i tried impact, but it simply spins around. The entire thing spins

I did manage to get the diff out but i know that trying to get a diff back in with that damn thing there is gonna be a royal pain in my @ss

 

Got any photos of said allen-head bolt?

 

its mentioned and picture indicated on ECG's removal and install instruction sticky

 

I've replaced a few front diffs. I know this bolt you're speaking of, but I don't remember what it threads into. Got any detailed pics?

 

jamie,
not sure exactly, ill try take pics tomorrow.
Im sure if you "wanted" all in all you can swing by tomorrow and take a look
pm me if your in the nw or can check it out .