Its been rebuilt years ago and could of sat in the junkyard for awhile too,the reason I think it has been rebuilt is the case was painted blue and a couple local trans shops paint their trans blue. It has been in my car for about 3 years just sitting while I got some body work done,I drove it shortly after installing it and it acted the same so it needs some attention. When it slides into 3rd the RPM goes up some if that will tell anything Jeff