Trans doesn't go in gear. Now what?! Please Help

AJ/FormS said

If you dont have manual shift capability, then I would check the L/R strut, for sure. Unless you are confident that the band adjustment was fine, before the new TC went in
Its possible for the pump to be making plenty of pressure, and all the tranny guts be perfect,yet the tranny wont drive. .

Click to expand...

The trans kit does not have manual shift capability, so maybe checking the L/R strut would be worthwhile...

I'm pretty sure the bands were properly adjusted. I didn't touch them during the converter install/cam break-in and they were fine before hand.

AJ/FormS said

The TC has to physically fit both the input shaft and the reaction shaft support, as well

Click to expand...

Not sure I understand this. The converter was ordered for a 727, so I assumed the input shaft fit the converter. Would I know this by how it 'clicks' into place and spins during the install? How would I know if the reaction shaft support fit correctly? Everyhting seemed fine when I slid it into place.