I was plowing snow last night and got into a sticky situation. I put my 05 500 auto in 4wd and thn locked the front diff. in the low range. I pushed a big pile of snow and ice and got stuck on the slippery ground and noticed that only 3 wheels were spinning. Is there an adjustment on this model for the cable? If so, where is it at and how do I adjust it? Thanks for any help.