What Go Fish said is true. While not a Ram, my 92 Plymouth Duster with the A-604 OD was due for a fluid change so I asked a few places to include the dealers parts man. All said Dexron III was ok to use. WRONG! WRONG! WRONG! $1500 later and I had a new trany. Go to Allpar.com and read some http://allpar.com/fix/trans.html befor you do a big boo boo. DaveJ
Retired, US ARMY 1973-1994 ASE mechanic, Electrical 1994-1997 Retired GTE/VERIZON/FRONTIER 1997-2015
Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.
03 Suzuki Burgman 650(Burger King) Scooter 65 Formula S Cuda 78 Little Red Express Truck 98 Buick Regal (wifes car)