I have a 2" suspension lift on the front....leveling kit....plus bigger tires and different rims. Right after i had all this put on, I noticed that the rear driver side was sagging a enough to notice from a distance, plus the alignment was off quite a bit. I took it the the dealer and they said there was nothing they could do and that i should go back to where I had the work done(Allen Tire Co.)....so I did. A.T.C. said it was the leaf spring. Since then, I have been to the dealer 3-4 times for the same reason. They have said there was nothing they could do everytime. Mainly the reason is because of the lift. I dont have the factory tires and rims anymore either. Told me to put it back to stock and they would look at it again and take it from there.
Along with all this, I found a TSB on another Tacoma forum about a "recall" on the rear suspension. I showed the dealer this and they said same thing above.
If anyone has any input on what i should do, OTHER than puting it back to stock, then PLEASE let me know. I really want to get this nightmare fixed.