Well I was actually able to pick my truck up today. I looked through the service schedule guide and it says the transmission fluid should be flushed every 30k. So the 75k was way off, by that time you should have already flushed it twice. Now I'm a bit concerned... guess I'll have to drop the pan, replace the filter, and flush the system. Hopefully I won't be left with problems after doing this... guess I'll find out. Oil still looks and smells good so hopefully that shows that the previous owner did the routine maintenance and I'm just repeating something that was only done just 15k before
I think the 30k interval is a dump and fill, not flush.
