I installed Sumo Springs @SuperSpringsInt  on my Tacoma.  With the added weight of my Diamondback cover @DBackCovers and other items, my truck seemed to sag.  When I add our kayaks or pulled my trailer it felt like I was doing a wheelie and I would hit the factory bump stops often, which are painful.  I went from 35 inches from ground to fender to just over 35.5 inches.   I've been driving my truck this way for a long time and the difference was immediately noticeable.   I need more wheel time, but my first impressions are positive.  Very easy install.