HELP! Trans Fluid ?s

slips in reverse? No KD associated with that gear so that's not an issue there. Get a trans flush and put in Good ol' Dex(x) Type F works too but gives a harsher shifT and burns easier. ATF+3 is very good as well as 4 but is overkill in A 727/904. I wonder if you aerated the fluid and it has bubbles in it? Let it run a few in N. Thats a drag.