I have 4 of the 3 ton units. Bought early 2000. I need to verify that number. Mine have deep engaging dogs as they are not that easy to unlock. And they are from HF. Interesting read for sure....
Pretty sure mine are all older than that, and I’ve never had even the slightest issue with the ones I’ve got. I will check the numbers just to be sure of course.
And while any kind of jack stand failure is bad news, the recall specifically states a “shift in weight” can cause the release. This should go without saying, but if you’re using them properly there shouldn’t ever be a shift in weight.