Think he was asking about E-bodies which the A/C cars don't have the drivers vent box. Same holds true for 71-4 B-body. 66-70 B a/c cars do have the drivers vent box as well as 67-73 A body.

72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, .
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