Purchased in December 2017. They were easy to install and I was happy with them at first. However, after about a month, they stopped raising the tailgate in wintry temperatures. (30 degrees or so). Also now that Spring is here and the temps are 60, 70, 80 they work fine when they go up but when closed (our tailgate is automatic) it slams shut from about the last 12 inches or so. No soft close like last December. Very disappointed in them and do not recommend.