I wouldn't replace the filter. Should be good to go with a visual inspection. There was a later Volvo tech bulletin that stated not to replace the filter. Reverse blow w/ shop air (messy!).
Clean well the pan and magnets. Note the clamps are different for the corners. Don't overtorque.
745 TurboGreasel reminded me of a method I have used in the past to flush all the ATF, which worked well.
Not wanting to admit it, but I used Supertech Dexron III from Walmart. And 1/2 to 2/3 bottle of Lucas Trans Fix, to atone.
http://www.lucasoil.com/products/dis...iid=29&catid=2