I'm wondering what size of wheel/tire combo you can stuff in there with TRD springs without stretching; I'm guessing 18x8 wheels at least, but what tire size
With TRD springs, I’m running 18x8.5-35mm with 225/45/18 tires and no spacers. If I upgrade, I’m going with 19x9.5-30mm offset with 255/40/19’s?
This is probably the max that the wheel well can handle without further modifications.
Disclaimer: I don’t know this for sure, I base this on how much room I still have with my current setup.
This will bring the wheels flush with the body and fill the well opening, still allowing for full turn radius. I think anything larger and your getting into fender rolling and tire stretching.
Of course all this will be different if you switch to coilovers or bag it.