Well, a while back I'd gotten into discussion about wanting to do this mod, but not wanting to have to buy a whole new TC just for the arm. A friend on another board donated a TC my way, and off to work I went.
While I've seen it done before, I've also seen that a few people didn't redo the new hand into a lefty. So I shaved down the old thumb and cut a groove on the 'back' part of the old hand to make the new inner palm. I puttied on a new thumb and filled in the old groove on the other side. Then I painted both hands black. Actually looks better that way.
It's not the most professional job, but it's better than having a thumb on the back of your hand
As shown on the other mods' pictures in the past, once again the arm sticks out the back in jet mode. Still, it doesn't look all too bad. (There've been worse--take BW Dinobot's robot legs in beast mode)
I had to cut down the original hinge for the old arm/fuselage/weapon so that the new arm would fit a little more flush with the underside. I also needed to keep most of the hinge so that it could lock down properly, or the entire fuselage assembly would just slide off the front hooks on TC's back.
So, how's he look?