Dodge Camper Van w/318- switching 3-Speed to Overdrive transmission?

@JDMopar - Why would he need a HD torque converter and even more so, a front pump when the transmission mentioned is in an as heavy if not heavy vehicle designed for heavier loads and towing capacity?
Seems like a waste of money to upgrade something that does t need it.

If the transmission came from a 5.9, he would simply need the flex plate to bolt up to the engine making it a bolt in. Good tip on the trans mount to acquire as well.

@Curtis336

I was also thinking. On my ‘79 Magnum, there was a factory trans cooler installed. The car was just a 360-2bbl when new. Why it came with it, IDK. But any cooler is a good thing IMO. Keeping the trans fluid cooler longer on any road trip is a plus helping extend the transmission life and improve reliability.