I was thinking those staybars are different on our tractor, but I was going to wait till I had a pic of them to post. We called them set-height links.
They attach at the dual-width pin on the centre casing, never to the 3PL top link attachment. John, I'll take a pic and post it so you can see what they should look like - I reckon your top halves (currently bolted together) have been trimmed for another purpose.