I currently running 12" Chevy springs. They are stiff as hell though. Alcan makes 12" springs for toyota but they haven't figured out the settling of the spring. My brother in law run's those on his 85 4runner and the rear's have settled down more than the front. Really noticeable. A company called Carrier springs make up to 30" springs for toyota and my friend has ordered them. The ride is very nice, but the wait was long and the price was a little expensive. Do you have an e-mail address? I can sent you pics. My 4runner is all looks for now, but we are in the process of dropping it down, doing a 3.4 conversion with dual cases and maybe go back to links in the rear and the front as well.