I've just started the engine after rebuild and now the trans won't shift into gear. No reverse, no forward gears.
When i first started, trans was about 2 quarts low on fluid, but i added fluid with engine running, and it's now on normal level. I went through all gears, but nothing.
Trans was out of the car for 9 months, but it ran normally when i removed it.
Any idea what could be wrong?
Could routing of cooler lines be wrong and cause this? I don't think so.

Fluid level drops a few milimeters when the engine is started. The linkage is OK, I checked it because I installed new cable bracket.
My trans is converted to full manual operation with TransGo shift kit.
Converter is properly bolted.

One more thing. When my engine broke, I had tu pull the car home.
I didn't tow it, since it was only a mile or mile and a hlaf from my home.
Could've that caused the problems?

Any idea is appreciated!