Well my friend now has a kia sedona i think its a 2005 it might be a 2004. I have 2 questions 1. Where the heck do you find the crush washer at? Is this dealer only.. and if so can you get one at a different dealer ex. a hyundai dealer? 2. How hard is it to drain and fill the transmission is it the simple drain plug then refill? Thanks for any advice on this vehicle. I already have oil and filters for 3 changes. Oh and what Transmission fluid does it use the Kia-Hyundai-Mitsu stuff?