A Body Sway Bars

I don't think the 73+ sway bars will work with the 67-72 K member.

The hotchkis and hellwig 55917 are not sway bars designed for the 73+ K member, they're designed to work with the 67-72 K member. But they don't use the stock 67-72 sway bar tab location because it interferes with running wider tires up front, both of them use "custom" tab locations.

However, from the mounting instructions from both of those bars the "custom" tab locations are very close to the same as the 73-76 sway bar tab locations.

So, what I was saying wasn't that you should order a 73-76 sway bar, what I was saying is that you should get a Hotchkis sway bar for a 67-72 car, or the Hellwig 55917 for a 67-72 car, because those will work with a 67-72 K but will also be adaptable to the 73-76 sway bar tab locations that the QA1 LCA's have.

The issue here is the mismatch of the sway bar mounting style on the 67-72 K member and the 73+ LCA sway bar tab locations.