Thanks for the info, I put one on my 53 Dodge. It has an aftermarket harness and two cooling fans and still had the flickering light problem until I put the powermaster on it, constant 14.6V now and no flickering. I was wondering if my A-100 stock harness will handle one but if your truck didn't have any problems it should work on it. Is your truck a 1977? I put the late model mini starters on all three of my Mopars. I love them!