Auto transmission problem

[Rommel]

Hi all. I have 1985 D350 in the UK. After replacing the crankshaft oil seal in the engine and putting the gearbox back in i no longer have any drive at all. Torque convertor wasn't removed and box is still full of fluid. Any suggestions would be appreciated as to what could have gone wrong please.
Regards
Steve

 

[Stoffregen Motors]

You removed the transmission to replace the rear main seal? And the torque converter remained installed on the front of the transmission? Are you sure it didn't slip out a tiny bit and disengage from the pump? Did you fasten the torque converter to the flexplate? Are you sure you have the shift linkages adjusted properly?

 

[Daw14]

I second the idea that the converter was pulled away from the pump. It only takes a small amount to have it disengage.