I had my trans rebuilt 2 years ago by supposedly good shop. well the trans pulls great,but sometime when taken off it wanted to jump in out of gear which I learn to feather it when taken off, then there was the tq converter locking and unlocking when I have the cruise on... well now it seem to hold second gear alot longer now I really don't have the money to rebuilt the trans again still have a few payment left from the first time should I try changing the fluid and filter?? I really need help on this please trans god can someone recommend something to try? 99 ram auto 46re I think.