I'm investigating some transmission issues, and I noticed that my servo covers look different from all the ones I see in videos and online. They don't have a raised up reinforcement section, or any logos/stamps that I can see. Based on the VIN sticker and the transmission tag it is a 5R55S from 2002. Is this a sign that some work has been done on it before? I also have this build up of gunk around the OD band adjustment bolt, I'm experiencing a P0741, could this be the result of low fluid from this leak? I haven't got the right setup and tools to drop the pan yet, but I'm planning on buying some new fluid and draining/swapping as much as I can as soon as possible. Do these bolts have an o-ring seal or is there a crush washer on the lock nut? Thanks!