I don't think it is tire rubbing. Possibly tire scrub.... I don't know. It was really a bad noise and feeling. Felt a bit like the front diff locking up or something. Maybe I should have the dealer take a look.

This has come up in other threads, seems to be something to do with the torqueshift G transmission. My driveway is on a slope and I get this every time I goose the gas when backing in, after I let off the gas as the engine is returning back to idle speed. If I keep the throttle smooth on the way up I don’t have the issue. Going to bring it up to the dealer at the next oil change. Thought at first it was possibly the traction control kicking in but had tried with it off and same thing. Going to bring it up to the dealer at the next oil change. My driveway reads a 8 degree angle on the off-road screen, if you can find an angle like that when your at the dealer and they test drive it you will probably be able to replicate it.