ok so im trading my 4.6 out for a 5.4 navi and wondering which trans would be better a t45 from a 99 svt or tr3650 from an 07 gt? id go t56 but im under pretty tight money constraints n need cash for everything for the engine swap. if i understand right, the tr3650 has higher torque capacity but 2nd gear goes bad pretty commonly which is y i ask

 

Do the t45, only because the 07 trans won't line up right w the shifter...