DRUM, 4L80E DIRECT 5 CLUTCH, 91-UP SPRAG NOT INCLUDED.
4L80E / TH400 Direct Drum. Buy the TH400 34 element PATC sprag to replace the stock 16 element unit, increasing the torque capacity by 110%. Standard in all PATC TH400 race transmissions. A mandatory addition to any TH400 / 4L80E used in racing or heavy duty applications.