auto or manual? That matter ALOT! I had a 5 speed acura tranny, it weighed 90lbs, so probably around that.

Mine was between 80 and 100 pounds I would say. I was able to take a loop of cord around the front mount bolt and a bolt on the rear somewhere, and lift the while thing up with one arm. I could carry it around with two arms. I was able to stand with my foot where the rear motormount goes, with the other foot on top of the radiator (in the engine bay) and lift the tranny straight up, then hold it there with one arm, and slide some bolts in. It was tough because I could only hold it for a few seconds before my arms and legs started shaking and I had to rest and try again.