torque converter?????

Hi all great weather for getting under motor,,well here goes,,we bought disco 1994 diesel runs good but would not drive forward but would reverse, autobox...so we took out g/box and put in another the same but used, used but good.put in new torque converter,,,now runs good but no drive at all...do i need bleed torque converter or am i missing something ,with prop shafts off the drive wont even turn gearbox..at a loss please help if any ideas..how do you check torque converter?is there special way to bleed autobox??

I don't know the setup on the Disco, but either you're unlucky & have 2 faulty boxes, have low fluid level or possibly some faulty electronics. Find out whether this car had a gearbox ecu fitted & whether its good. Also check the selector mechanism to make sure it works properly.

just to resolve ...turns out [idiot] had not aligned oil drive before locating gearbox...oh joy

torque covertor must allways be fitted to gear box first not engine ,wasnt the torque convertor fault to start with ,clutch a more likely