Question on factory look Powermaster one wire alternator for Mopars.

I did two weeks ago on 76
Power wagon wished I would have done it two years ago when some electrical gremlins started if u would like some photos of me and I can get some tomorrow.
PS it's made in USA and new so about as good as it gets.
I am wanting to put one on my 66 A-100 truck. I have heard that Mopars with the bulkhead connectors couldn't handle the load of the Powermaster but the A-100 just has a factory harness without a bulkhead connector. My 53 Dodge has an aftermarket harness with the Powermaster and works great.