i posted something like this over on performancetrucks but got not one answer.
the trans is a built 60E with a tci sf 3000 converter.

my truck had been parked for a week and the last time i drove it was coming back from the track on fri. 4th. everything was working fine driving it back that night.

i took it out for a spin on sat. 12th and when i got on the interstate, i noticed the tc wasn't locking up. it was sort of like slipping/rev/flashing when going uphill. also, i think b/c of that, my trans temp was running hotter than normal during normal driving.

i took it out for a spin again on sun. 13th and still the same thing, + when the trans temp got hot around 190ish it started shifting really hard. so i parked it and disconected the batt. for 30min. went for a test drive and still no lock up and hard shifting. i pulled a sample of fluid and it was a lil dark w/tiny particles for only 5k miles on the rebuild. later on in the afternoon, i went for an other spin and still no lockup but the trans was shifting fine.

i'm thinking the torque converter is going bad. when i did the install of the coverter the first time, i got to drive for 2 min and i ended up breaking the pump. the only thing i can think of is maybe some of the particles from the broken pump got into the converter and it's finally eating the inside of it away causing it not to lockup.

any suggestions on what the problem could be? tranny or converter? thank you guys in advance. later...
lance