Just picked up some add-a-leaves for my fj40... i got these to try and get rid of the whole sag thing that happens after bout 30 years but before i put these on are they going to fix my problem? I was told by a local shop that they are the best bet (short of new springs of course) to revive my springs. I'm not doing this to wheel, i just want a better look and a better ride. I'm also adding new shocks and poly bushings. Am I doing the right thing here?

may give you some lift. I dont think it will lift you too much though. And the ride will be worse. It will be stiffer. I would maybe go for a longer schakle, to increase ride height.