hi everyone well i serviced my tranny today new fluid and filter what a pain that was had to take off crossmember, anyways drove the truck about 200 miles back home got off the highway would hardly shift would go up to 3500 rpm before shifting out of first 2000 rpm is the norm 2 nd to 3 rd was hard also pulled over tranny was exactly quart low topped it up still shifted really hard for awile after driving for awile its a little better but not the way it was and it somewhat bangs when u put it into drive or reverse im hoping i did not ruin this tranny it shifts fine into overdrive though any thoughts