Alternator

I run a summit brand 1 wire on my 408. I allways used to have trouble with my voltage regualtors going out after about 5 months. Havent had any problems since ive switched over. Im still running factory alt on my 74 duster and I have trouble with regulators on it also. After running one for a while they will start going bad then with the headlights on the battery will discharge. Im about to buy one for it next time.