GE dishwasher leaks. I have a GE potscrubber 720, mdl:gsd720p-35ba, (which is not found on this

Question

I have a GE potscrubber 720, mdl:gsd720p-35ba, (which is not found on this site???), it only leaks on discharge...there is a stream coming from the bottom where the motor and the plastic housing meet. Is there a gasket to be replaced or something else to be done. I see the motor is $116 +s/h from one site....would I be better off buying another DW?

thanks...
doing dishes by hand ;-(