In the snow its not to bad on the drive line. Most of the time, they just need a little help.
Wish I would have had a camera, and somebody to take the pic, but an 18 wheeler was "kind of stuck" on Hospital hill in Ponca City a couple of years ago, had traffic backed up for a mile.
I came up from a side road, and saw he could move back and forth about 50 feet, and then just lost traction on the ice.
I hooked on to him with a nylon rope, with the Tacoma, and gave him the tiny bit of help to crest the hill.
I'm not saying the tacoma is a bad ass or anything like that. The 18 wheeler just needed a "tiny" bit of help.
Would have make an awesome video though!