NP435 Trans Swap Help

today I’ve found than an A-body A833 is not the answer
If I could, I think I'd put one in my truck, I don't see why it couldn't pull a car trailer with it.
But what do I know.
What I think I know is the NP435 will pull anything, but I don't need this truck to pull ye 'ol barn down on the back 40.