Gary, don't feel ostricised because your 101 came standard with larger diameter tyres. This is about people who run considerably larger than stock tyres on their vehicles.
There are a few places I can think of where the only possible way a rut can have become so deep is if tractors or large tyred 4wds had been through repeatedly, perhaps spinning their tyres on the way through. One particular stagnant firm bottomed puddle caused a 35" tyred 110 to get hung up on both diffs whilst the 35" tyred portal axled 130 with Rover diffs (ie massive clearance) got through with a scrape and some wheelspin. It wasn't water run off or any other natural erosion that caused the tyre ruts to be so deep, it could only be wheeled vehicles. Some massive clearence vehicles must have been through repeatedly. If it had been only 29" tyred vehicles then the ridge between ruts would not have been so high.
Its the mentality of some owners of heavily modified vehicles...that like usual ruin it for everyone.

