well im not positive its not slipping...and its the right alternator...80 amps... the first one worked fine for 2 months....and today i just went and took out the alternator and battery...then i checked the resistance from the positve cable that hooks up to the alternator and grounded it on the chassy....it came up having 0 ohms....then i went and check resistance from the positive battery cable to the negative..again it was 0 ohms....now my question is that does that mean there is a short somewhere between the two...because with nothing conected there should be no reading at all...am i right?...in order for there to be a reading the there needs to be a complete circut