✅ SOLVED Found along a rural fence line.

[UncleVinnys]

My guess: post cap piece for barbed wire. ()

 

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[SanMan]

My guess: post cap piece for barbed wire. ()

That's a "coil spring spreader"

The square is for the drive of a breaker bar.

 

[Tony in SC]

Yep had about a dozen in the front springs of my "57.

 

[Plug N Play]

Yep.
With rear coil springs, you could borrow dad's car ... jack it up and go cruising ...

Pop out the spring spacers, throw away the empties, and wipe off the tire dust ... they'd think you were at the theater all evening. :angel4

 

[A2coins]

I remember those and traction bars lol

 

[Bigcypresshunter]

im too late for this one but i used them in my coil springs on my GTO in the 70s.

 

[Bigcypresshunter]

Yep.
With rear coil springs, you could borrow dad's car ... jack it up and go cruising ...

Pop out the spring spacers, throw away the empties, and wipe off the tire dust ... they'd think you were at the theater all evening. :angel4

We used to jack up the rear and put a piece of wood 2x4 on top of the rear coil spring lol but used these spacers in the front

 

[cudamark]

That's a "coil spring spreader"

The square is for the drive of a breaker bar.





View attachment 1790617

AKA "screw jack"