Another option is to replace your rear springs with stock rear springs from a '99 or '00 since it's been proven that those years were slightly higher when stock from the factory. It's not a big difference, but something like 1 inch.

Another option is to install air bags inside the rear coil springs. I know someone that did that on their 3rd gen 4Runner primarily because they occasionally towed something plus they wanted to avoid occasionally hitting bump stops on big bumps. It was inexpensive and they loved the result. Sorry I don't know the specifics.

I don't want to sidetrack this, but I still have my stock '00 rear springs sitting in a box in the garage. I replaced them with lift springs after only a few thousand miles when I bought the vehicle new. I'll sell them cheap. If someone's interested, send me a PM.