I did not see any numbers readily available. I’ll look closer at the fronts, easier to see.
I suspect they are from 2009 ish, when it was overhauled. My TJ had the LSC adjusters that would bottom each side, these free rotate 1-8 and around again. I suspect they are in need of a rebuild or upgrade.
What do the adjusters adjust? My previous Jeep (TJ) had “LSC” or compression adjustment knobs. I’m not sure what these do. I really don’t feel any difference between 1 and 8. The LSC’s were a world of difference top to bottom adjustment. These could be blown out too.