Yeah, my bro was a repo man for a while and found that out the hard way when he towed an AWD Honda with only the rear wheels on the ground. I think by 4-down he mean with all four wheels on the road so there wouldn't be a speed differential between front and rear most of the time and when there was it wouldn't matter with the TOD in neutral anyway. BUT - since we don't have hubs that can unlock, basically the whole drivetrain would still be spinning so I think it must be more of a wear issue.

No worries - I'm sure some knowledgeable VXer will wade into this conversation soon and then we'll know!