What's the difference between that alternator and the later Denso alternators from the late 80s cars and trucks (other than lower output)?

I've been running a 130 amp Denso off a 318 truck for a couple years.

It's hard to see in this pic since it's under the radiator hose but it's the only shot I've got access to now.


We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon