It started about 3 years ago while 2 hours from home the car was overheating a bit and was shifting hard. Then.....clunk....no hard shifting and no 3rd gear. Drove it like that for ages until the trans finally died 2 months or so ago.

Aamco did a soft rebuild with a 3 year warranty (luckily). The car still didn't feel right and 3-4 days later, no 3rd again. Brought it back in and they rebuilt it again and with a new valve body. At this point he said everything has been replaced on the trans (don't believe these people anyways). The car felt ok but still a lil hard shifting IMO. Drove it the past week and a half....then last night, no 3rd again. No signs, no nothing. Just have to rev the car up to about 40mph and trick it to go into 4th.

I'm gonna bring it to a different Aamco, but geez this is crazy. Anybody have any ideas or similar issues?