Torsion Bars?

Just upgraded my suspension system bushings all to PST Polygraphite. new front PST sway bar, new KYB shocks, new wheels and tires all the way around, I have a rear sway bar I want to install as well (I think I'm missing the attachments that bolt to the frame to connect the sway bar to).

I currently have 892/893 standard 340 bars
And I have these but I cant read the markings on them

View attachment 1715454989
Looks like 225 USA and 224 USA to me