Kaspar 21 Report post Posted December 4, 2015 I have installed the B&M Hammer shifter in my 69 Mustang. It is equipped with an original C4 gearbox and had the original shifter before. Getting the old shifter out and installing the Hammer shifter was fairly easy, but electricity isn't my strong side and I can't seem to find any information in the manual about the switches for reverse light and the neutral safety switch. I can't seem to find out how to identify (single out) the old wires and connect them to the hammer shifter? Anybody have a diagram of the old wiring and could easily explain how to connect them to the Hammer Shifter? Thanks. K Quote Share this post Link to post Share on other sites
Rsanter 152 Report post Posted December 5, 2015 I have installed the B&M Hammer shifter in my 69 Mustang. It is equipped with an original C4 gearbox and had the original shifter before. Getting the old shifter out and installing the Hammer shifter was fairly easy, but electricity isn't my strong side and I can't seem to find any information in the manual about the switches for reverse light and the neutral safety switch. I can't seem to find out how to identify (single out) the old wires and connect them to the hammer shifter? Anybody have a diagram of the old wiring and could easily explain how to connect them to the Hammer Shifter? Thanks. K For the C4 the neutral safety switch should be on the side of the trans. Use that one and forget the ones with the shifter Bob Quote Share this post Link to post Share on other sites
Rsmach1 71 Report post Posted December 5, 2015 For the C4 the neutral safety switch should be on the side of the trans. Use that one and forget the ones with the shifter Bob The B&M shifter requires removal of the original switch to mount their shift lever. Quote Share this post Link to post Share on other sites
Kaspar 21 Report post Posted December 5, 2015 I had an idea that I could just take the old wire from the C4 that eas connected to the old lever. Identify the wires and connect them to the Hammer shifter. I see the two switches, but am just unsure of how to connect. Thanks. Quote Share this post Link to post Share on other sites
Rsmach1 71 Report post Posted December 5, 2015 Been years since I installed a B&M, don't the 2 switches have 2 blades terminals each? If so you'll have to cut the wires (I would cut them as they come out of the original switch so you can retain the original plugs on the cars harness) and add crimped terminals to mount to the shifters switches. PS Once your determine which wires are for backup lights simply connect to the shifters backup switch, polarity doesn't matter, same for the neutral safety switch. Quote Share this post Link to post Share on other sites
Kaspar 21 Report post Posted December 5, 2015 Do you have to have a diagram on the original harness? It doesn't seem obvious what the wires represent. Quote Share this post Link to post Share on other sites
Wycked69 20 Report post Posted December 5, 2015 See Attached, At the connector on the switch, The red wires with blue stripes are for the neutral safety switch The black wires with red stripe are for the back up light Quote Share this post Link to post Share on other sites