hey,

is the alternator for my 77, 280z internaly or externaly regulated?

bacause the one autozone sold me is externaly regulated and i have been told that this is wrong

thanks alot

-Jon

I do believe that the 77 was the last of the externally regulated cars. My 78 is internally regulated and I recall that when I replaced it the application said 78-83. If you look at the back of your alternator, that is the one you removed, you can see the voltage regulator through the slots. It's held in place by two 12mm nuts spaced 2" apart. If you don't see that then it's externally regulated. Vicky and Scott (ZRush) have a 77. Maybe they can help here.

Thanks, SBlake

vicky, zrush.. you out there?

Can I shove in an internally regulated alternator into my 240Z and get rid of the voltage regulator?

Can I shove in an internally regulated alternator into my 240Z and get rid of the voltage regulator?

YES, There is a Technical Article (in the Tech Articles forum) describing in detail the process.