Adjust rear struts

I assume you have a super lift system or in other words, auto leveling suspension in the rear?

If so, then this will level itself but you are not able to lift the vehicle higher then proper ride height without possibly damaging the struts.

Basically that will put too much pressure in them and they will fail earlier.

The only way to lift the suspension is to put a stiffer spring in it as the spring is what carries the body weight and the strut is only there to dampen the shock when you hit a bump.

Please run through this and let us know if you have other questions. Thanks