OK, rear seat is back in! I added a bit more deadening to get it ready:
Since its not easy to find, here are the bolts/nut torque specs:
With the seat fully in, its MUCH quieter -- I added about 4 1/2 sheets (9 lbs) so I'll test the sound out again....
This was a fun project and the ProMeth kit is awesome... Extreeeeeeeeemely impressed with it...
-Don