1970 DUSTER 440 4spd 8 3/4 posi

can i ask one question isnt this car a stick. You say you are filling it with atf which my understanding would be automatic transmission fluid. If its a stick and its a stock four speed 833 it should take gear oil i usually run 75w 90 in mine. Just wondering maybe you are running a aftermarket trans or something or it was just a typo but just wanted to make sure you knew either way. Good Luck with the project Justin