Torque Converter Install

Hey Guys!
Have'nt visited for awhile, but I'm back to work on the Duster.
I have a stock replacement torque converter from Year One for the 904, and I'm trying to get it to slide onto the tranny input shaft so I can drop the motor in. I marked the locations of the tranny pump rotor lugs on the oil seal, and I know I am close, but the converter still will not slide all the way on. It's still about a half inch to the outside when placing a straightedge across. I messed with it for a couple of hours, trying to spin it a little, and then trying to rotate the input shaft with the rear tires, and nothing seems to be working.
Any suggestions?
Thanks in advance,
Scott