67 barracuda k frame ?

Idler arm mount and engine mounts
67s were a one year only stud-mount idler arm. It works, but the double-shear is better.
In 73 they switched to the fail-safe spool-mounts. No longer can the engine flip over after tearing it's mounts off.
As you may know there are at least three Ks for every year; the slantys, the SBM and the BB. Schumacher makes brackets to bolt anything to anything.

340Ks are a special case. They have re-inforcing at the LCA pivots, and a washer welded up front just to ID it. IDK if this was an across the board modification, as I have only seen it on 70/71s