D100 pull my Duster?

When I was young I learned to drive on work vans and trucks. They were all 3 on tree. One of the vans was a Dodge 3 on tree 225. 1st had to be full stop. 1st was granny. If no load in it it was driven as a 2 speed 2nd andv 3rd only. We always loaded the crap out that van pallets of wood floors, ceramic tiles, commercial tile, full rolls of carpet. It was slow but pulled any load.
The old saying going nowhere fast applied. Had an 8 3/4 bet it has real low gears. Short trips on interstate in right lane going slow even empty. It had no decent top cruise speed at all. 1st gear just got it rolling
But that van flat out worked.
Many times I was given the keys as driver to drop stuff off at job sites. Others hated it, tget would even tell the boss, have Kevin bring it to us he likes driving it.
I infact did, it was easy work driving and a fun job for a young guy.
One of the older guys destroyed the transmission. I still to this day think he did so on purpose so he did not have to drive it anymore when asked to. Mr. Archie hated that van. Hated that it was slow and could not put it in 1st unless stopped.