Alternator & Starter Supply

Husband bought an alternator had to send it back because it was whistling. They returned it and they said there was nothing wrong with it. He drove his mustang for about 6 weeks, put it away for the winter. Brought it out a month ago was still whistling and yesterday it died 60 miles away from home. So now because it 's 5 weeks past the purchase date of 4/15/15 he is out 178.95 even though they had it in the shop for part of the warranty period. Obviously selling inferior products. Another case of buyer beware !!