I had to do a tranny swap a while back on my truck, everything went smoothly, i am however having some problems as of late.

for the most part the transmission runs and shifts perfectly. but from time to time, it seems like everything starts slipping, and my O/D light will flash, after a while it will go away. I haven't been able to find any pattern in the occurences of this problem, and can't figure out why it's happening. any help or ideas would be great.

Jedd

oh yeah, 1990 4Runner 3L V6 w\ slush box.