1974 Duster 225 OEM Alt

It should work fine as long as it is the same as the one that was on it. I see 60 and 100 amp alternators listed for that application. I don't know why they would have a 65 amp listed. That looks like the regulator you need but the number I find is a VR125.
The one that was on it was a 60. And the replacement I got is a 65. I believe the oem was a 50amp? Not sure. Just want to make sure I won’t fry anything if I put in the 65 amp.