Lights dimming at idle.

[fixit-p]

Originally Posted by red71cheyenne

It looks exactly like the 100amp one wire I had on my 71 that did the same thing until I upgraded to CS130.

Those 1 wire alts are all DELCO clones the housings don't change just the regulators, haven't see one yet that wasn't a clone. the important thing here to properly identify what type of alt it is, is if the white and blue wires are connected and where (back of alt = external reg. or side of alt = internal reg.) or does the terminals look like this l l or this - - .