Review on Engine Optimization Spring Assist by Christopher Buck

It's great. I've installed a few and it's a great inexpensive option for a sagging rear end. The hardware is cheap and you can replace the u-bolt with an exhaust yoke if you want, but I haven't had any rust or scrap yet. The only downside is that it can make your car look a little more like a dump truck than it used to, but it's tolerable and no worse than bumping into bumpers on a bumpy road!