40s on a stock wheelbase TJ seems like a horrible idea. Maybe.... an LJ but that jeep would have been much better in my opinion with 35s or 37s. The issue now is if you were to drop the lift a bit and lower the tires to 37s you would need to redo the shocks since they clearly aren't set up to allow much up travel. The rear looks like it has a few inches before it will hit the rear of the tub.
60k is nuts.