Hello Everyone,
I have a 69 Mach 1 that currently has a 70 c6 transmission. The car does not have a neutral safety switch installed and the wiring at the firewall is crossed to let the engine start. okay, yes, but I can start the engine in any gear...so not good! And also have no back up lights. Therefore I would like to install the neutral safety switch. So know I need to decide with one to purchase. As you can see from the table and picture, the 69 and 70 are different, where the 70 has taller standoffs to clear the locking column lever. But my 69 does not have a locking column. Does this mean I should use the 68-69 part? If so this would be great since companies like Scott Drake are making them, but no one makes the 70 part, which mean NOS and big money. C7ZZ-B C6 '68-'69 Transmission One Quad Plug D0ZZ-B C6 '70-'72 before 12/1/71 Transmission One Quad Plug with taller standoffs to clear locking column lever.