Sorry about not giving you enough info about vibration, I would have to write a book about all that we used for this swap and the attempts to fix the vibration. This is my first time reaching out for help on this kind of forum, so I'm gonna screw things up, but I still appreciate your help. enough on that issue!
I've never heard about having to index the bell housing and adapter plate nor has anyone ever mentioned it while making the swap. Indexing seems to be very meticulous requiring specialized tools. I have taken the t5 back to the garage and ask the mechanic to leave tranny mounting bolts loose and start engine to test to see if that makes any difference in vibration, maybe off center is what I ask him to check for(crude form of checking for improper indexing )
I've never heard about having to index the bell housing and adapter plate nor has anyone ever mentioned it while making the swap. Indexing seems to be very meticulous requiring specialized tools. I have taken the t5 back to the garage and ask the mechanic to leave tranny mounting bolts loose and start engine to test to see if that makes any difference in vibration, maybe off center is what I ask him to check for(crude form of checking for improper indexing )