rear drive ...

Your probably biting your tongue to hard bud
 
My 05 has a strip of foam inside the tube that holds the drive shaft up slightly, the bevel box slides right in.
 
My 05 has a strip of foam inside the tube that holds the drive shaft up slightly, the bevel box slides right in.

Yeah for some reason Triumph stopped installing those foam pieces. Be nice if they did.
 
I hold the bike up in the air, perpendicular to the ground, using my right hand.

I wait 'til the shaft is equidistant from all points of the housing then i simply slide the bevel drive on using my left hand.

Lower gently to the ground and afix the dome nuts, torqued down as specified by the vehicle manufacturer.

Too easy
 

No comprendo Pictures please.
 
I made a washer (Doughnut) out of foam. And left it in there.
Jake - I have the same last name, and I align the drive shaft the same way.

The manual said there should be one inside, but my 2015 Roadster didn't have one. I cut a foam ring with these dimensions:

Outside diameter 2-1/2" (64mm)
Inside diameter 1-1/4" (32mm)
Thickness 3/8" (10mm)

Every time I remove the bevel box I drag the foam ring back into position with a piece of wire. Easy reassembly, and no risk of leaving loose metal objects or pieces of string in there. IMHO it's worth the initial bit of effort.