Slant six complete driveline swap

Thank you, yeah it’s an automatic sorry, both 904s. Only difference is the duster is column shifted and barracuda is floor shifted but seeing as they are both 904s would it work with the already existing floor shift linkage? My biggest concern is the driveshaft, do you think it would work fine?

Eyeball it- make sure the trans has the mounting bosses for the floor shift linkage- it should. Then just swap ALL the floor shift linkage/arms/brackets over to the new trans. Driveshaft should be fine- they're both 108" wheelbase.