Raul,
 yes, that is the support for the one way inside the torque convertor. There
is another one inside the trans.
To put them together on the bench (or floor) carefully line them up and have
one of you rotate the convertor slowly back and forth as one of you apply
pressure, they will slip together very easy when every thing lines up. Make
sure you remove the governor first.
do not use the mounting studs to pull the two together until all four nuts
will go on at the same time, at this point you will know every thing is lined
up and can pull it in evenly tightening each nut a little at a time.

Jeff E.   Lilburn, Ga.
87'WESTY
87'GL