Now, My raider is standard and I have actually never done a fluid and filter service on anything with this model transmission. However, Most Import rear wheel drive and 4 wheel drive transmissions are very similar in design. The dipstick tube SHOULD be of a two piece design, One piece That is welded to the pan, and a different tube that comes from the top. Look for a "Reducer" type piece in the dipstick tube, this is where the tube will split. Normally the O-ring seals VERY well and requires a fair amount of effort to detach. The real battle will be getting it back on. I might be completely wrong on this too lol but all other transmissions i've worked on have been this way.