My well cared for 2012 Patriot was up for 2 year State Safety Inspection . I anticipated failure for need of CV / Axel replacement and had that repair completed. What didn’t expect was failing for rust weakened / compromised rear suspension. Was advised to either replace whole assembly or find a good welder who can weld sleeves around areas of the suspension cross support members that the station identified . Had that done at the same transmission shop that replaced my cv/axels and passed upon re-inspection. I’m told that the newer chemicals they’re treating winter roadways with up here in New England is much more corrosive to vehicle undercarriages !!!