Actually 71-74 mirrors are the same size.. 70 mirrors are completely different...Search shows numbers are for E or B body 1971-1974. Thats is just the base numbers though . I believe the housings are interchangeable across many bodies . However acurate 71-74 E-body mirrors are slightly different drivers vs passenger. Passenger sides are slightly larger but most owners don’t realize it because it is so slight .
Yes .. but not so much that most notice . Pedastals are shorter and angled different at the base if memory serves.Actually 71-74 mirrors are the same size.. 70 mirrors are completely different...