Torque boxes on 73 340 car?

My '70 B7 Swinger 340 4sp - 4 torque boxes
My '72 B5 Swinger 340 Special 3sp - 4 torque boxes
My '72 EV2 Swinger 340 Special 727auto - 4 torque boxes (so, a few auto's got them - although, this is one of the 40 or so 'Y39' special order '72 H coded Swingers for Crosstown Motor City)