I've got a 300 that previously had an NP435 and i have a NP435 that was pulled from a 400. Aside from the bellhousing, got it, is there anything that i need to swap or such to make it work? I've spent a few day searching and have pulled up crap. This is my first build, so be easy if i have missed the obvious

 

The NP435 from behind a 400 should be exactly the same as the one behind a 300. Note there are different versions for GM & Dodge, with two versions showing for Ford, the difference being 3rd gear if I'm reading this right:

The New Process 435 Transmission - Novak Conversions

 

Sweet, was just wanting to be sure. I bolted them up the other day to start lining it all up before paint, went together in a snap and then i cranked on the yoke it just turned freely so i thought it wasn't matching up, well i just now realized right before responding to this that the trans is in N, so, thanks for the confirmation.

 

Not sure if you need it, but here's a writeup I did on my NP435 install.

https://www.ford-trucks.com/forums/1...ic-clutch.html

 

sweet thanks dude, good write up

 

I have a 300 i6 an need a transmission what trans best work an what all do I need this will be my first build

 

John FR welcome to FTE
We need a lot more information like what year & model truck, 2 or 4 wheel drive, stick or auto.
Lastly what are you looking to do with the truck, cruiser on weekends to cars & coffee / shows or a work truck hauling dirt & bricks all week long?
Dave ----