I got those top two bell housing bolts out "fairly" easily from the top with a box end on the bolt and another box end (a big one) intertwined with the first - this gave me approximately 18 inches of leverage to loosen them - but the are TIGHT and have been in there 30 years - there are dowels between the housing and torque tube and also I believe between the housing and block - so the torque tube and/or engine need to be "persuaded" for and aft about an inch for housing to clear and drop - I don't know how much give there is in the rubber mounts for tranny and engine so I don't know if it's possible without at least loosening the tranny from it's mounts and supporting it - also remember the tube will have no support up front once housing is removed so have something to support it ready
