Suddenly getting rubbing from rear tire when offroading - worn spring or shock?
I was driving my 2005 KJ along some rough, sandy ground today, and as I went across some dips I heard some very loud rubbing from the left rear tire. When I inspected it, I could see that the outer wall of the tire is rubbing against the inward-pointing lip of the plastic fender. It only happens when the suspension is compressed (such a when negotiating dips on rough ground), it's fine on normal pavement.
I took a look underneath but can't see any obvious problems. Is it more likely to be the spring than the shock? Can anyone tell me the factory ride height for the rear wheels, so I can measure it and see what I've got?