the right tranni fluid?

BillGrissom said
ATF+4 is a superior fluid. Fully synthetic w/ more friction than Type F (what I used to use). It can't hurt your Torqueflite because the later A-413 front-wheel drive tranny (in my Voyager) is also a Torqueflite, almost indentical internally, and it uses ATF-4. I use Autozone's store brand since probably from the same factory and says "synthetic".

The only reason to use Dexron is if you really want to save $1/qt for inferior fluid. A lot of Chrysler V-6 minivans were messed up because shops put in Dexron since the owner's manual said "OK to use Dexron if you can't find ATF". It caused the lockup torque converter to shudder, wearing out the clutch plates.

ATF+4 does not have more friction than type F (Ford).
The reason people used Type F In Chrysler cars was for the friction
ie (firmer shifts).Many people used Type F at the track,but because of the extra friction tranny rebuilds happened much quicker.

There is absolutely no reason "NOT" to use Dexron in your older torqueflite.
Dexron is what was used from the factory.Dexron IV is the top of the line dexron today,and is a synthetic.

Dexron IV or ATF+4 are both great,synthetic fluids for the torqueflite.

The parts guy sold you ATF+4 because it was the most expensive fluid on the shelf.