I currently drive a 2002 4runner and have a lot of audio weight in it (i'm talking 1500-1700 pounds of audio lol). Rear is sagging pretty bad as the majority of the weight is there. Is there anyway i can balance out the weight between the front and back to take some of the load off the back? I talked to a friend about suspension issues and he said something like this could help.

http://www.suspensionconnection.com/...43-toyota.html


I'm completely clueless on this topic so any help is greatly appreciated!
Thanks all!