tryan,
You have a little bad information. ALL G's came from the factory with identical front and rear differential gear ratios. If I understand you correctly, you have a new G500? Were you aware that the truck is in 4wd all of the time? If your drivetrain is binding, without the locks engaged, you have a problem with the truck.
My G's are a '95 and an '02, they definately have power steering. It is possible that the oldest G's came without it but, I doubt it.
I guess I prefer to rely on my own driving skills rather than some electronic program. I have never felt the need for additional traction help in my G's. Over the years I have used them on road, off road and for quite a bit of rural winter driving.
I am glad you like yours. They are fine machines despite my preference to avoid the additional electronics