You people are crazy.
Ive got over 100K miles on my car and haven't changed the tranny filter ever. (and Ive had NO problems related to that) only tranny problem I had was when the TPS wire got shorted to ground and caused limp mode.

with every oil change at 3K miles...yeah right, thats just overly excessive maintenance. Maybe 30K miles..thats reasonable


and Infinity you really think a filter change would solve his problem of having NO gears?.. and what is your reasoning behind it?.. completely clogged filter so no fluid flow?

Frankly I don't know how the A604 got such a bad rep. I've beaten the hell out of my car/tranny and have had no problems.
IMO add a aux tranny cooler from day 1 and your set for life.

1998 dodge avenger 4 cyl AT
Mods are:
Not enough