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A one wire netural safety switch from 1964 ply can it be used in later model 727 with a grinder brake valve body and operate the same way. Does the one wire safety switch ground to operate ??
Thanks Tom

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It depends on which year your going to, some of the pre 1971( I think) will work and later ones won't due to the rooster comb park and nuetral tab length differences in early and later models. I have used the later ones trans. in the early bodys by using the center pin to activate the starter relay