Anyone know what year these are from

[norton]

I was wondering what year these are from also what the bracket on the top of one, is for ?

 

[Hollandshand]

I have these on my 69

 

[rumblefish360]

Mid to late 70's for sure. That would be stock stuff on my Dodge Magnum.
The bracket is for the vacuum amplifier.

 

[Sedanman]

75- around 79 318 trucks/vans