Re: Brake light switch replacement on torsion bar car
Posted by HH56 On 2021/2/7 22:51:31
Your statements are correct. If you wanted to get a few terminals and a length of 16ga wire from the parts store you could make up a small loom so everything would just plug in the old factory 3 terminal brake switch plug on one end and the new relay and brake switch on the other. In the diagram posted below I show the colors in the factory loom but you could use all one color as long as they are marked properly so nothing gets confused.
For the terminals, the .156 bullet connector is one of two or three sizes available but is a standard diameter and should be available at almost all places that sell terminals. Some may be labeled slightly differently by one or two thousandths but still the same. Those labeled Ford are too big and there is another size that is way too small to use on the brake sw or the factory plug. The .250 female quick disconnect terminal is also a standard size. You may not find one fully insulated like I show but a bit of heat shrink tubing over the bare end takes care of that. As I mentioned in the other post if you did not want to worry about insulating terminal 87 just reverse the wires going to 30 and 87a connections at the relay. The exposed 87 terminal would never see power if that is done.
Here is the drawing to make up a small connector piece. Wire lengths would be determined by where you decide to position things.
Attach file:
added brake sw loom.jpg (58.64 KB)
For the terminals, the .156 bullet connector is one of two or three sizes available but is a standard diameter and should be available at almost all places that sell terminals. Some may be labeled slightly differently by one or two thousandths but still the same. Those labeled Ford are too big and there is another size that is way too small to use on the brake sw or the factory plug. The .250 female quick disconnect terminal is also a standard size. You may not find one fully insulated like I show but a bit of heat shrink tubing over the bare end takes care of that. As I mentioned in the other post if you did not want to worry about insulating terminal 87 just reverse the wires going to 30 and 87a connections at the relay. The exposed 87 terminal would never see power if that is done.
Here is the drawing to make up a small connector piece. Wire lengths would be determined by where you decide to position things.
Attach file:
added brake sw loom.jpg (58.64 KB)
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