Hello all , My father-in-law just purchased this truck. It has a lot of small things wrong with it and as he is 80 it’s become my project to fix this truck . It has a 88-94 chassis under it and the column from that donor truck as well . I’m trying to find a wiring diagram for the neutral safety switch so I can gat the back up lights working. Would anybody here this or just know it? Sent from my iPhone using H.A.M.B.