I have a quick and easy question. I have have the spanner socket for a the straight axle Dana 44 and i was wondering if the same spanner socket could be used on the Twin i-Beam axle. Because my friend wanted me to do his front bearings for him and didn't want him to have to rent the sockets if he doesn't have to.

 

A 2wd twin I beam has regular nuts on it, I just use a pair of channel locks.
The 4wd TTB system should use the same tool as the D44 straight axle, if it's a D44 TTB. The D50 TTB uses a different tool.