I believe it will fit 70 Parisienne although I think the door panels between the two of them are different so the switches may not interchange. The regulators will fit any B body in 70.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)