52 into front cylinder assembly 62 between rotating seals middle cylinder assembly 54 is fixed to carrier 46 clutch pack 58 is comprised of plates splined to cylinder assembly 54 alternating with plates splined to shell 56 when hydraulic pressure is applied to piston 60 sun gear 22 and sun gear 32 are held against rotation pressurized fluid is routed from the control body through front support 52 between planet gears into middle cylinder assembly 54 a more traditional placement of this brake would preclude routing shell 90 to the front of the gear box and therefore require that the output be located near the center of the gear box as a result of this placement of clutch pack 58 output element 12 is located in the more favorable position near the front of the gear box rear cylinder assembly 74 is fixed to input shaft 10 when hydraulic pressure is applied to piston 84 clutch pack 82 transfers torque between input shaft 10 and carrier 26 similarly when hydraulic pressure is applied to piston 78 clutch pack 76 transfers torque between input shaft 10 and sun gears 22 and 32 clutch pack 76 and piston 78 are required for an eight speed transmission but may be omitted in a six speed transmission pressurized fluid is routed from the control body through housing 14 into rear cylinder assembly 74 between rotating seals when hydraulic pressure is applied to piston 88 clutch pack 86 holds carrier 26 against rotation one way clutch 92 passively prevents carrier 26 from rotating in the negative direction but allows carrier 26 to rotate in the forward direction one way clutch 92 may optionally be omitted and its function performed by actively controlling clutch.