Converter Clutch Apply Slips, Rough Or Shudders

Torque converter assembly has internal damage. Replace as necessary.
Damaged or missing check ball in end of turbine shaft. Check and replace turbine shaft if necessary.
Converter clutch valve stuck or restricted oil passage. Clean and/or repair if necessary.
Crack in oil filter body, restricted filter neck or "O" ring seal cut or damaged. Check and repair or replace if necessary.