K Frame

You have something unusual. It might be a LATE 1972 V8 A body unit.

View attachment 1715728909

THat is a 68-72 V8 A body K member according to the Schumacher site. Note the 3 holes in the middle of the flat section.

View attachment 1715728910

Yours have those same holes.
Now here is a B and E body K member. ONE hole:

View attachment 1715728911
A frontal view would help since the B and E K members that I have seen are curved across the front while the 67-76 A body units are flat.
Same goes with the lower control arms.
The A is flat across the bottom, the B and E are curved.

B body:

View attachment 1715728912


Thanks. That’s what I’m starting to think. It might be a mid year, before the change to spool mount. But with the later style sway bar provisions. I have it over in storage, and will have to take some more photos and measure it again, as it’s been a while.