One often overlooked technique, even on 4WD vehicles, is weight on the rear wheels.
We put 100-300 lbs of tube sand or weight plates over the rear axle on our 4Runner and Outback when we are expecting a bad storm. Both the 4Runner and Outback have over 55% weight on the front wheels, so adding that weight to the rear gives you a lot of drive.
Both vehicles have Hakka R5 / R5 SUV.