So I was all bummed thinking I was going to have to pull the motor and find carnage :- (due to the freeze plug issue)...... I decided to try one more time and find the source of the "knocking" I was hearing. I was almost positive it was coming from the rear #8 cylinder......but

dumbass me had crossed 6 & 8 plug wires.....no more knocking sound....

But............. When I started it again, I am getting a sound and vibration that was hidden by the misfire due to the crossed plug wires.

checking the driveline and u-joints, .... I reach thru the inspection plate.... grab the driveline and wiggle it, there's lot of play in it......and a nice clunk as it moves as well. So I went to remove the bell housing and check it out ......I removed the fasteners, but I can't get it to budge. ( I'd like to remove the driveline and run it to verify what I THINK I'm hearing.) ANYWAY, since I have never pulled this engine, nor the bell housing, I need a little direction on this one. Do I need to remove all the engine mount bolts to get the bell housing to release? is there more bolts I'm missing on the bottom of it?
The pic shows the bolts I have removed so far.....including the ones you cant see on the other side.