whats wrong, TC or tranny??
At least get the fluid and filter changed. Also the little O-ring on in the input shaft. Based on other posts where people had leaks with junkyard transmissions, you might want to replace the front and rear seals, the O-ring for the connector and seal for the dipstick tube.
http://www.sonnax.com/system/announc...0E-LB1-LB2.pdf
http://www.sonnax.com/system/instruc...LB1-LB2-IN.pdf
If you can spare another $100, I would replace the shift solenoids, the pressure control solenoid and the wiring harness, which includes the TCC solenoid.






