The '62 A-body tank is very different from the '63 tank, which has minor differences from the '64-'66 tank.
There have been threads about putting (available) '63 or '64-'66 tanks in place of (unavailable) '62 or (really unavailable) '60-'61 tanks.
The factory parts cattledogs show a unique part number for each of the following:
• '60 Valiant (except wagon)
• '60 Valiant (wagon)
• '61 Valiant-Lancer (except wagon)
• '61 Valiant-Lancer (wagon)
• '62 Valiant-Lancer (all models)
• '63 Dart-Valiant (all models)
• '64, '65, '66 Dart-Valiant-Barracuda (all models)
And even at this late date, the aftermarket still services the '63 tank (Spectra CR11F) as a different item from the '64-'66 tank (CR11A).