Alternator charging Question

Great thanks very much, the alt looks like brand new it must have been for a single feed. Funny the rebuilder couldn't tell me that LOL And I took in twice to test it...a quick test... that simple...why wouldn't they just do it *G*
Thanks again at least now I can tell him what it is.
So by that field gounding out it puts the alt into full output?
It's a good day...learned something new..
Maybe I will take the back off and see if it is something I can do!!!

AL