1973 with factory disc brakes. The caliper attachment bolts have holes drilled through the hex heads. I imagine they were similar to the head bolts on a radial aircraft engine. If Dearborn put wires on, they’re long gone. What type of wire and how are they supposed to be wrapped? Don’t want to use rebar tie wire and have rust stains shortly thereafter or interfere with turning movement .
I use stainless steel saftey wire. They make wire pliers just for that job.
Others will have to comment on whether its correct or needed for your car, but here’s my 2 cents…
‘Lacing wire’ is what we called it in the service, so you can try that for searching a parts supplier. They do make lacing pliers, but if you’re only using it here and there you don’t need them. If you’ve worked with aircraft then you probably know all this, but look up on youtube or other sites for the fastest answer on how to do it. You want to be sure the wire leaves the bolt heads correctly and has sufficient turns per inch (but not too many).
We called it safety wire, it is designed to keep the bolt from loosening. I just did my 71. I used .032 wire (left over from my Huey days) when you run the wire through the bolt then pull one end over the bolt head and start making your twist make sure it is pulling the bolt head in a manner that will pull in a tightening direction. If I remember right the standard is 16 wraps per inch. Keep wrapping the wire till you get to the arm of the spindle for the tie rod end then wrap the wire around that keeping it pulling tight and start wrapping again leaving about a one inch tail and cut. Then fold half of the tail back over on itself. Always keep pulling the head of the bolt in a tightening direction, no neutral or negative safeties the tech inspector will cut them!
There is an old thread on here that shows how the safety wire was installed. Look on page 3 of this thread:
https://cccforum.discoursehosting.net/t/c4-rebuild-servo-kit/77/1
Hope this helps. Jim R.
The factory did a rudimentary job using plain iron wire. This is approximately as the factory did it. You can improve it by using .041" stainless aircraft wire of course.
I used welding wire,
Is that a bad thing ?
Thanks for the great replies. I’ll use the stainless steel wire.
Interesting to note how vehicle manufacture has changed. When working on my son’s 2002 Mustang I found that the vehicle didn’t have even a single lock washer, never mind safety wire. Ford now relies solely on Loctite.