44 of the second planetary gear set 18 the fourth clutch 86 includes an actuating assembly 86 a and a clutch pack 86 b the actuating assembly 86 a of the first clutch 86 includes an apply chamber 160 a dam chamber 162 and a piston 164 the actuating assembly 86 a is supported by the seventh shaft or interconnecting member 64 the clutch pack 86 b includes a plurality of clutch plates 165 fixed for common rotation with the seventh shaft or interconnecting member 64 interweaved with a plurality of clutch plates 167 fixed for common rotation with the third shaft or interconnecting member 36 the piston 164 of the actuating assembly 86 a engages the clutch pack 86 b to interconnect the seventh shaft or interconnecting member 64 with the carrier member 28 of the first planetary gear set 16 and the ring gear 74 of the fourth planetary gear set 22 referring now to fig2 a and 2b with continuing reference to fig1 a and 1b a portion of the transmission 10 is illustrated including the input shaft or member 12 the fifth shaft or interconnecting member 60 and the seventh shaft or interconnecting member 64 and further includes.