A fully inspected, assembled, and tested six friction direct clutch housing with 34 element intermediate sprag assembly, heavy duty intermediate sprag outer race, new OEM retainer, spiral lock ring, heavy duty direct clutch piston w/lip seals, hi-rate direct clutch apply/release springs w/ retainer and snap ring. Housing is pre-drilled with .055" vent hole. Works with all TH400 Transbrake valve bodies. Drum is set up for six .077" thick steel plates and six .080" thick clutch plates. Recommended clutch pack clearance is .045" to .060". If necessary thicker or thinner steel plates may be used to maintain recommended clearance. The use of grooved friction plates is recommended to reduce parasitic power loss, improve transbrake release and 2-3 shift quality.