Jimmy, I am sure there were 56s that worked very well with their 12V gauges. However corporate wide was another issue. I got this from Ford people that worked on them new, and when Ford dropped the King Selle 6v IVR gauges in 1986 for the GM style magnetic gauges. Old timers came out of the woodwork with 1956 horror stories and huge warranty claims. I had a 56 pickup for several years and no gauge problem, but in the back of my mind was always what if.