Postby labsy » Fri Nov 07, 2014 1:22 am
If you are asking about actually changing mode while driving in reverse, the answer is NO (...or at least NOT recommended), because while changing to 4LO vehicle needs to be stopped, shifter in P or Neutral position and brake pedal depressed.
But if you are asking to drive in reverse, answer is YES, of course and in ANY 2WD or 4WD mode.
The only difference in driving forward or reverse in ANY mode is a slightly different gear ratio, where 1st forward gear is a bit slower (higher ratio) than reverse gear.