Converter Clutch Apply Slips, Rough Or Shudders

Converter clutch pressure plate faulty. Check plate for damage and service as required.
Damaged or missing check ball in end of turbine shaft. Check and replace turbine shaft, if required.
Converter clutch regulator valve stuck. Clean, service and/or replace valve body as required.
Converter clutch accumulator piston or seal damaged. Check and service as required.
Channel plate seals damaged or missing. Check and service as required.