What is a safe way to get more fluid out of the aw4. Thanks

 

Take it all apart.... taking the filter off is probably the best way but that's not all of the fluid either

 

They say its a bad idea to power flush the tranny. So I decided to use this technique which changes pretty much all of the tranny fluid without putting any higher than normal pressure through the system:

-disconnect the tranny tube that goes into the stock tranny cooler (the lower one)
-connect a tube from that output line to a bucket and have someone turn the car on for a few seconds and it will spray fluid into the bucket
-keep refilling the tranny to keep it full
-repeat until you have flushed about 10 quarts through or it runs red
-reconnect the tube to the stock cooler and top off to the full line on dip stick.